The Rise of Nangs: What We Know, What We Don’t, and Why the Gap Between Those Two Things Should Terrify You

Substance Use – Nitrous Oxide Addiction – Nang Abuse

*They can be sold at service stations next to the vape menu. They arrive at your door within the hour via delivery apps. They scatter the floors of music festivals by the tonne. Nitrous oxide — nangs, laughing gas, hippy crack, whippets — has become the world’s seventh most popular recreational drug, sitting just behind alcohol, tobacco, cannabis, amphetamines, cocaine, and MDMA. And the clinical community is only now beginning to understand what heavy recreational use actually does to a human brain and spinal cord. What it’s finding is not reassuring. This is the most comprehensive piece on the nang epidemic that exists — and it carries a central argument: we are significantly underestimating how bad this is.

By Sober Standard

The word “nang” is thought to come from the sound distortion users hear when the gas hits. A warping, nasal, repeating tone — naaang, naaang, naaang — that reportedly characterises the brief dissociative high produced when nitrous oxide floods the brain. The high lasts, on average, between twenty seconds and five minutes. It produces euphoria, a sense of floating, sometimes laughter, sometimes visual disturbance, sometimes a profound and temporary disconnection from the physical environment. And then it ends, which is exactly the problem, because the brevity of the high is the engine of compulsive re-dosing.

In the United States, recreational “nang” (nitrous oxide) use is widespread, though comprehensive import and consumption data remains limited due to its diverse industrial and medical applications. The US remains a dominant global market, while Australia is experiencing an exponential surge. Australian Border Force data reveals that Australian imports skyrocketed from 249 tonnes in 2015 to nearly 3,800 tonnes in 2025. This represents a staggering 15-fold increase over a decade, with an associated import value jumping from A$2 million to A$19 million. While it is difficult to determine the exact proportion used recreationally versus commercially, health experts estimate that approximately 600,000 Australians now use nitrous oxide. This explosive growth—fueled by unregulated online sales and at-home delivery apps—has prompted growing alarms from doctors over neurological damage and public safety.

Nitrous oxide imports are surging and it’s having deadly consequences

A single nang costs approximately one dollar. They arrive in small silver cartridges the size of a thumb, designed for whipping cream, sold in boxes of ten or twenty at convenience stores, service stations, and tobacconists across Australia. They are also available on 24-hour delivery apps that promise arrival within the hour, operating under the culinary product classification that is the legal fiction sustaining this entire industry. The delivery apps used to advertise them openly. They cannot do so anymore, following TGA reclassification in late 2022. But they still deliver them, because the act of selling a cream charger for the stated purpose of whipping cream is, in most Australian states, entirely legal. What the buyer does with it is, technically, someone else’s problem.

This is the architecture of the nang market: a legal product with a legitimate industrial use, whose market has been captured almost entirely by recreational users who were never the intended customer, sold through channels that are difficult to regulate because the product itself cannot be banned without collateral damage to the hospitality industry, and consumed in quantities that the clinical literature is only now catching up to.

The Lancet’s Public Health division published a major review of nitrous oxide-induced health harms in February 2025. Queen Mary University of London researchers, publishing in one of the most prestigious medical journals on earth, described the burden of harm as growing and the regulatory responses as lagging. A German hospital study tracking neurological cases between 2020 and 2024 found that sixty-five percent of all N2O-related neurological presentations in that five-year period had occurred in 2024 alone. The curve is not flattening. The curve is accelerating.

We are not having the conversation this data warrants. And the reason we are not having it is that nangs occupy a peculiar cultural space — too mainstream to be frightening, too legal to be stigmatised, too briefly intoxicating to feel serious — that insulates them from the scrutiny that every other drug in their risk category receives.

That insulation is the problem this piece is trying to address.

A Brief History of Laughing Gas: From Humphry Davy’s Parlour to Your Postcode

Nitrous oxide was first synthesised in 1772 by English chemist Joseph Priestley. Humphry Davy gave it its colloquial name after experiencing its euphoric effects and writing about them in 1800 — he described the sensation as one of warmth, exhilaration, and what he called “pleasurable thrilling.” He also noted its analgesic properties, suggesting it might be useful in surgical contexts, a suggestion that took another four decades to be properly acted upon but which eventually transformed medical practice. By the mid-nineteenth century, nitrous oxide was a standard anaesthetic for dental and minor surgical procedures. By the late twentieth century, it was listed on the World Health Organisation’s List of Essential Medicines.

The recreational history runs in parallel, and is almost as old. By the early nineteenth century, “laughing gas parties” were fashionable among the English upper classes — events at which Davy and his contemporaries, including Samuel Taylor Coleridge and the poet Robert Southey, would gather to inhale the gas and document their experiences. It was considered an intellectual experiment as much as a social pleasure. For most of the next century and a half, recreational use remained confined to those with access to the substance — primarily medical and dental professionals who occasionally, and not infrequently, misused it from their own supplies.

The democratisation of nitrous oxide came with the commercial cream charger — the small, standardised 8-gram cartridge developed for culinary use, sold cheaply, distributed widely, and requiring no special equipment beyond a balloon and a “cracker” device to puncture the cartridge and release the gas. By the 2010s, at music festivals across Australia, Europe, and the United States, the silver cartridges had become as ubiquitous as cigarette butts. The 2021 Global Drug Survey ranked nitrous oxide as the seventh most popular recreational substance in the world. One in five respondents had tried it at least once; one in ten had used it in the previous year.

In Australia specifically, the product acquired its own vernacular — nangs — and a market infrastructure that went far beyond festival use. 24-hour delivery services began operating out of Melbourne, Sydney, and Brisbane, marketing themselves openly as culinary supply companies while delivering box after box of cream chargers to residential addresses at two and three in the morning. The Therapeutic Goods Administration reclassified non-medical nitrous oxide as a Schedule 6 poison in October 2022, requiring warning labels and restricting sales to individuals over sixteen. It was a regulatory response, but it was a modest one, and it came after the market had already scaled well beyond the point where labelling changes could meaningfully redirect behaviour.

The Population That Uses Nangs: What the Data Actually Shows

One of the most significant analytical problems with assessing nang harm is that Australia’s primary population drug monitoring system — the National Drug Strategy Household Survey — has not historically included nitrous oxide as a specific category. Users are captured under the general “inhalants” umbrella, which makes it genuinely difficult to establish baseline prevalence and track trends accurately. This is, in itself, an indictment of how seriously the question has been taken by public health infrastructure.

The data that does exist paints a concerning picture. Among young Australians using MDMA and other stimulants — a population tracked by the National Ecstasy and Related Drugs Reporting System (EDRS) — nitrous oxide use has been rising consistently. Between the 2021 and 2023 EDRS samples, researchers observed increasing reports of use of larger nitrous oxide cylinders, which are associated with heavier and more frequent use patterns. They also observed increasing reports of persistent neurological symptoms — tingling, numbness — among users. The shift from small 8-gram cartridges to large-format tanks is significant: the large tanks have no legitimate food-preparation purpose and their availability is associated specifically with high-volume recreational use.

Globally, the picture is consistent. Among people aged sixteen to twenty-four, a 2021 self-reported survey of 592,000 people estimated that twenty-four percent had used nitrous oxide in that year. In the UK, the national crime survey estimated 4.2 percent of this age group had used it in 2022-23 — but crucially, public health researchers note that even if the overall number of occasional users appears stable, the data on hospital admissions for N2O-related neurological presentations is going in the opposite direction. The Lancet researchers identified what they called a potentially alarming shift from sporadic festival use to heavy, frequent home use — from the population of casual experimenters toward a smaller but more intensively using cohort, whose risk profile is substantially worse.

The WA Poisons Information Centre recorded 50 calls regarding nitrous oxide in 2023 alone — and in 2020, WA emergency departments saw 22 presentations related to nitrous oxide, including eight patients with spinal cord degeneration. Eight patients with spinal cord degeneration in a single year in a single Australian state. From a drug that most of its users believe cannot cause serious harm.

Understanding addiction as a continuum — from casual experimentation through regular use to dependency — matters particularly here, because the nang market operates across all points on that continuum simultaneously. Most people who try a nang at a festival have no clinically significant experience. The people who order twenty boxes for home delivery are a different population with a different risk profile. The data on the casual population is frequently used to minimise the risk for the heavy population, which is a category error with serious public health consequences.

The B12 Mechanism: How Nitrous Oxide Attacks Your Nervous System

Here is the biochemistry, stated plainly, because it is important and because most people who use nangs have never heard it.

Nitrous oxide irreversibly oxidises the cobalt ion at the centre of vitamin B12 (cobalamin), rendering it biologically inactive. This is not a dose-dependent threshold effect that only appears at extreme exposures. It is what nitrous oxide does, chemically, every time it is inhaled — it inactivates whatever B12 it encounters. A single balloon at a party probably inactivates an insignificant amount. Ten balloons over an evening begins to accumulate. Regular use — weekly, daily, or in the sustained heavy sessions that characterise the heaviest users — progressively depletes functional B12 activity.

Vitamin B12 is not optional. It is essential for myelin synthesis — the process by which the nervous system maintains and rebuilds the myelin sheath that surrounds and insulates nerve fibres. When functional B12 becomes insufficient, myelin synthesis fails. Nerve fibres begin to demyelinate. And demyelination of the spinal cord — particularly the dorsal and lateral columns — produces what clinicians call subacute combined degeneration, or SACD.

SACD from nitrous oxide presents with symptoms that, in the case reports that are filling neurology journals with increasing frequency, tend to appear weeks to months after heavy use begins. The patient notices tingling or numbness in the hands or feet. Then weakness in the limbs. Then gait disturbance — difficulty walking, falling. Then, in severe cases, paralysis. Loss of bladder and bowel control. Psychiatric symptoms including memory loss, confusion, hallucinations. Spasticity. In the most severe cases, documented in peer-reviewed case studies, patients have been admitted to hospital with hand strength of 2 out of 5 — barely capable of gripping anything — after sustained use of fifty to one hundred cartridges per day.

An eighteen-year-old presenting to accident and emergency with numbness in all four limbs and trunk, traced back to daily use of seventy-five to a hundred cartridges. A forty-four-year-old with hand strength so compromised he could not perform basic tasks. A twenty-seven-year-old woman with progressive unsteadiness, pins and needles, and weakness in her lower limbs. These are not hypothetical adverse events in a pharmacological safety profile. These are documented clinical cases, published in medical journals, occurring in real people who used a product that is sold at service stations next to the confectionery.

The critical point — the one that makes this worse than it might appear — is that N2O-induced spinal cord damage is not the same as B12-deficiency spinal cord damage from dietary insufficiency. Research comparing the two conditions finds that N2O-related damage is more severe, more widespread, and carries a worse prognosis. The nerve damage is not solely explained by the B12 depletion. Nitrous oxide causes neurological harm through additional mechanisms that science does not yet fully understand. Treatment with B12 supplementation is necessary but frequently insufficient. Some patients recover well. Some recover partially. Some, particularly those who continued using after initial symptoms appeared, sustain damage that does not reverse.

Recovery can be slow and incomplete. That phrase appears in multiple clinical papers. Slow and incomplete. We are talking about an eighteen-year-old who used a product widely perceived as harmless and ended up in a neurology clinic with spinal cord changes visible on MRI.

The Frostbite Risk Nobody Talks About

Before going further into the long-term neurological picture, there is a short-term physical risk that receives almost no attention in the cultural conversation about nangs: frostbite.

Nitrous oxide exits a cartridge at approximately minus forty degrees Celsius. Inhaling directly from a cartridge — without first discharging the gas into a balloon — can cause severe cold burns to the lips, throat, and vocal cords. Using consecutive cartridges with the same cracker device causes the device to become extremely cold, risking cold burns to the hands. These are not theoretical risks. They are documented adverse events in clinical literature. They are also almost entirely preventable with basic harm reduction information that most nang users have never received, because the product is sold with no such information attached and the cultural transmission of harm reduction knowledge in the nang-using community is informal and inconsistent.

The large-format tanks that have become increasingly prevalent in the market — specifically designed for high-volume recreational use, holding hundreds or thousands of litres — carry additional risks including the potential for explosion if mishandled and the risk of extreme rapid chilling if the gas is released directly. There is no culinary use case for a three-kilogram nitrous oxide tank in a domestic kitchen. These products exist for one purpose: to allow heavy recreational users to consume larger quantities without the inconvenience of running out.

What We Don’t Know: The Gaps That Should Be Keeping Researchers Awake

The argument of this piece is not that nangs are catastrophically dangerous for everyone who uses them recreationally. The argument is that we are systematically underestimating their risks at population level, and that the gaps in what we know are themselves evidence of a public health response that has not kept pace with the scale of the phenomenon.

Here is what we genuinely do not know:

The true prevalence of neurological harm in the using population. The clinical cases we are seeing are the people who presented to hospital. Neurological symptoms progress gradually. The tingling in the hands that begins at six months of regular heavy use might not prompt an emergency department visit for another six or twelve months — or might never prompt one, if the person is unaware that what they are experiencing is a drug effect and not an unrelated condition. We have no population-level data on the rate of subclinical neurological changes in regular nang users. Given the evidence from clinical populations that neurological symptoms occur in a dose-dependent manner, and given the prevalence of heavy use that the EDRS and other monitoring systems are detecting, the case reports we are seeing almost certainly represent the severe end of a distribution that extends much further down.

The long-term outcomes of people who recover from acute N2O-related neurological presentations. Many of the published case studies report short-term outcomes — the patient improved with B12 treatment and physiotherapy. Very few track patients at one, two, or five years to assess whether apparent recovery is complete or whether residual deficits persist. The 2025 German study found that neurological presentations increased sixty-five percent in a single year. We do not yet know what proportion of those patients will be fully well in five years.

The psychiatric consequences of heavy use at population level. The 2025 Frontiers in Psychiatry study found that 7.67 percent of patients admitted to a psychiatric hospital over a six-month period had a history of nitrous oxide use — a number that is striking given the relatively recent emergence of heavy recreational use. A retrospective study in the Paris area documented a marked increase in severe neurological disorders following nitrous oxide abuse. Nitrous oxide has psychotomimetic properties — it can induce dissociative and psychotic-like states — and its interaction with the NMDA receptor system, which is implicated in schizophrenia spectrum conditions, raises questions about psychiatric vulnerability that have not been adequately studied in recreational populations.

The reproductive risks. Animal studies have consistently shown teratogenic effects of nitrous oxide exposure during pregnancy — effects on foetal development that are dose-dependent and include neural tube abnormalities. The data on human reproductive outcomes from recreational use is limited. We do not know how many women are using nangs in the first trimester of pregnancy before they know they are pregnant. Given the demographics of the using population — primarily young adults in their late teens and twenties — this question is not trivial.

The cumulative effect of the interaction between high-volume nang use and declining dietary B12 intake. The populations most heavily using nangs are also, in many cases, populations with dietary habits that may not guarantee adequate B12 intake — particularly those following vegan or plant-based diets, which are more prevalent among the demographic most likely to be using nangs recreationally. A vegan who uses nangs weekly is not in the same risk category as an omnivore who uses nangs weekly. This interaction has not been studied at scale.

Whether the shift to large-format tanks is producing a population of truly heavy users whose risk profile we have not yet characterised. The EDRS researchers in Australia flagged the shift to large tanks as a potential indicator of escalating use intensity. The public health implications of a subpopulation using the equivalent of hundreds of 8-gram cartridges in a single session are not yet understood, because that population is relatively new.

The 2025 Lancet Public Health paper put the core problem bluntly: education around the preventable harm from recreational use of nitrous oxide and tightening regulations on suppliers are essential in mitigating the increase in nitrous oxide-related health harms. They also noted that targeting end users through criminalisation risks discouraging health-seeking behaviour — the person with early neurological symptoms who fears prosecution will not come to a hospital. The regulatory response has to be calibrated carefully, but it has to exist at a level commensurate with the evidence.

Australia’s responses have been fragmented and inconsistent. Western Australia introduced the toughest regulations in the country in 2024, restricting sales of nangs to registered food and beverage businesses only, with suppliers required to verify the identity and purpose of buyers. WA also prohibited the sale of large-format tanks entirely. These are serious regulatory measures — driven by documented presentations of spinal cord degeneration in WA emergency departments and evidence of the trend accelerating. But they apply in WA only. The rest of Australia operates under a patchwork of state-level regulations that vary significantly in their stringency.

The United Kingdom took a different approach in 2023, making it illegal to possess nitrous oxide if police believe it will be used to produce intoxication. The Netherlands banned it entirely in 2023 by adding it to Schedule II of the Opium Act. Germany moved to ban sales to minors in late 2025.

The international trend is toward more regulation. The evidence for more regulation is accumulating rapidly. Australia is moving in that direction but slowly, and not uniformly.

The “It’s Just a Bit of Laughing Gas” Problem

The cultural persistence of the harmlessness narrative around nangs is worth examining directly, because it is not simply ignorance. It has a structural basis. Several structural bases.

First, the brevity of the high. A drug that produces an intense effect lasting thirty seconds to five minutes does not feel like a drug that causes spinal cord degeneration. The effects wear off completely. You feel fine. The absence of an obvious hangover — unlike alcohol, unlike MDMA — removes one of the most common proxies people use to assess whether a substance is doing them harm. The absence of a hangover does not mean the absence of harm. It means the harm is occurring at a level that is not detectable in the short term.

Second, the legal status. Something that is sold at service stations, delivered to your door via app, and available without restriction at hospitality supply stores is not, in the mental model of most users, a drug. It is a consumer product. Consumer products sold by legitimate businesses are not supposed to be capable of causing spinal cord degeneration in young adults. The legal architecture of the nang market communicates a safety signal that the product’s pharmacological profile does not support.

Third, the cultural positioning. Nangs are associated with music festivals, university parties, and the consumption habits of young people who are otherwise health-conscious, socially connected, and educated. They are not associated with the social contexts in which drug harm is typically imagined to occur. The stigma that might otherwise prompt scrutiny is absent.

Fourth, and most importantly: the harm is dose-dependent, progressive, and invisible in its early stages. The person who has used nangs heavily for six months and has developed early subclinical demyelination does not know it. They may notice occasional tingling in their fingers and attribute it to poor circulation. By the time the symptoms are severe enough to prompt medical attention, the damage is already significant. This is a drug whose warning signals are easy to miss and easy to rationalise away — right up until they cannot be.

Sober Standard’s piece on the Kanye West nitrous oxide allegations captured, in the context of a celebrity story, what the clinical literature describes in technical language: chronic heavy use depletes vitamin B12, leads to nerve damage, and can produce permanent effects. The allegations involved four large surgical tanks at a residential property. That is not culinary use. That is the extreme end of the distribution. But the distribution has a lot of people in it who are closer to that end than they know.

Who Is Most at Risk? The Population We Need to Be Talking About

The people most at risk from heavy nang use are not the obvious cautionary-tale subjects. They are not people in crisis. They are not people with obvious addiction presentations. They are, predominantly:

Young adults aged eighteen to twenty-five, attending festivals and university events, using nangs casually at first and occasionally, then more frequently, then habitually. The EDRS data consistently shows students as the group most frequently using nitrous oxide. This is a population whose B12 status may not be monitored, whose tingling fingers may go unreported for months, and who have received no formal information about the B12 mechanism because there is no systemic mechanism for delivering it.

People using nangs in combination with other substances. The combination of nitrous oxide with alcohol, GHB, or opioids substantially increases the risk of losing consciousness. The combination with MDMA or other stimulants is common at festivals and increases cardiovascular strain. The combination with cannabis or psychedelics intensifies dissociative effects in ways that can be psychologically disorienting. Understanding addiction as it operates across multiple substances simultaneously — the polydrug use picture that characterises festival environments — is essential for accurately assessing nang risk, because virtually no one who uses nangs heavily uses only nangs.

People with pre-existing B12 vulnerabilities. Vegans, vegetarians with limited supplementation, people on metformin (which reduces B12 absorption), and people with any condition affecting B12 absorption are at substantially elevated risk from the same quantity of use that might produce only subclinical effects in a person with optimal B12 status. This population is not being identified or warned.

People who use large-format tanks. The shift from small cartridges to large cylinders is not merely a matter of convenience. It represents a qualitative change in the dose available per session. The large tanks have no food preparation purpose. People who have sourced them are, almost by definition, heavy recreational users, and the volume of N2O available from a single large tank is capable of producing acute and severe neurological effects in a single session.

The Regulatory Picture: What’s Happening and Why It’s Not Enough

Jurisdiction	Current Status	Key Measures
Western Australia	Strictest in Australia	Sales limited to registered food/beverage businesses; large tanks banned; fines up to $30,000
South Australia	Partial restriction	18+ only; banned 10pm-5am; must be stored out of public view; fines up to $10,000
Victoria / NSW	Supply-intent offence	Illegal to sell if you know/should know buyer will inhale it
Queensland	Limited restriction	Classified restricted substance; police can seize alongside illicit tobacco/vapes
Netherlands	Banned (2023)	Schedule II Opium Act; import, export, and trade prohibited
United Kingdom	Possession offence (2023)	Illegal to possess if suspected intent to get high
Germany	Minors ban (2025)	National ban on sales to under-18s
France	Banned for minors (2021)	Under-18 sales prohibited; correlated with marked decline in neurological presentations

The international direction is clear. The domestic patchwork is not adequate to the scale of the problem. A product available at WA service stations until 2024 is still available without meaningful restriction at service stations in Queensland and New South Wales. The delivery apps that fuelled the 3am market still operate. The large-format tanks that carry the highest per-session risk profile were until recently available to anyone who wanted them online.

The silent epidemic of alcohol and related substance harms in Australia has a nang-specific manifestation that is being under-counted because our surveillance systems are not designed to capture it. Emergency department presentations for nitrous oxide are classified in ways that may not be surfacing in headline statistics. The people who are currently developing subclinical neurological changes from regular heavy nang use are not in any database. They are at home, on the couch, noticing that their hands have been slightly tingly for a few weeks. They are fine, probably. Or they are not, and they don’t know it yet.

What Does This Do to the Brain Long-Term? The Honest Answer Is: We Don’t Fully Know

Here is the sentence that anchors the central argument of this piece: the long-term neurological and psychiatric consequences of recreational nitrous oxide use at the population level are not yet known, because the population-level exposure is too recent for the long-term consequences to have been fully characterised.

We know what happens in severe cases. We know what happens in moderate cases when treatment is prompt. We have reasonable data on what happens in the weeks and months following acute neurological presentations. What we do not have is longitudinal data on what happens to a person who uses nangs moderately but regularly — say, once a week, ten to twenty cartridges, over two or three years — and then stops. Does their B12 function fully recover? Does their myelin fully recover? Are there persistent subtle cognitive or neurological changes that would not present to a hospital but would show up on detailed neuropsychological testing? Do the psychiatric effects — the NMDA antagonism, the dissociative exposure — produce long-term changes in mood regulation, anxiety processing, or psychotic vulnerability?

We don’t know. And the honest acknowledgment that we don’t know is, in itself, a reason for caution that the culture and the market are not currently expressing.

The science-backed healing timeline for sobriety documents what happens when people stop using various substances — the biological recalibration, the return of function, the recovery of systems that were being chronically suppressed or depleted. For nangs, that timeline cannot be fully articulated yet, because the research is not complete. What we can say is that stopping — particularly before significant neurological symptoms have developed — is the single most effective intervention, and that the B12 depletion that has been accumulating during use can be addressed with supplementation after cessation.

But cessation requires awareness. And awareness requires a conversation that the culture has been unwilling to have at the scale the evidence demands.

“I Didn’t Know It Could Do That”: The Information Failure

One of the most consistent findings in the Australian research on nang use is that awareness of the B12 mechanism — the specific pathway through which heavy use causes neurological harm — is very low among users. A 2021 EDRS study found that while most participants were aware that nangs carried some neurological risk (brain damage: 63%; nerve damage: 20%), only one in five could identify B12 depletion as the causal mechanism.

This is the information failure at the heart of the nang harm problem. The product is sold without meaningful safety information. The delivery apps that were servicing the market provided no educational content alongside the product. The harm reduction information that exists is scattered across clinical websites that users are not consulting. The school drug education curriculum in most Australian states does not include nitrous oxide as a specific focus. The result is a generation of young people who have an abstract awareness that nangs are “a bit risky” combined with zero understanding of the specific, progressive, B12-mediated mechanism through which heavy use causes harm — the mechanism that they could act on if they knew about it, by supplementing B12, by reducing frequency, by recognising early neurological symptoms and treating them as the warnings they are.

If you or someone you know is a regular nang user and has been experiencing tingling or numbness in the hands or feet, weakness in the limbs, or difficulty with balance or coordination, these are not symptoms to attribute to tiredness or stress and monitor from a distance. They are potential indicators of neurological change that warrants medical attention. Get B12 levels tested. Tell the doctor about the nang use. Act on the information rather than waiting for symptoms to resolve on their own, because in some cases they do not resolve on their own.

The free drug clearance calculator at Sober Standard covers how long various substances remain in the system. Nitrous oxide clears the bloodstream quickly — this is pharmacologically well-established. What does not clear quickly is the functional B12 depletion it has produced, or the neurological changes that depletion enables if it accumulates over time.

The five steps toward sobriety are as applicable to nang dependency as to any other substance. The research on whether nitrous oxide produces physiological dependency in the classic sense is not settled — the Wikipedia article on recreational use of nitrous oxide notes that “it is not known if nitrous oxide causes drug dependency but its use can be habit-forming.” The habit-forming quality of a substance that produces intense euphoria lasting thirty seconds and costs one dollar per dose is not difficult to understand. The compulsive re-dosing pattern is well-documented. Whether the neurochemical substrate of that pattern meets the clinical criteria for substance use disorder is a definitional question. The lived experience of a person who orders twenty boxes of cream chargers at two in the morning because they cannot stop thinking about having another one is not a definitional question. It is a description of a problem.

The Environmental Cost That Nobody Mentions at Festivals

Every nang canister that ends up in landfill — and they have a lifespan of fifty to seventy-five years — represents a small environmental cost that, multiplied by the volume of use at a single music festival, becomes genuinely significant. Estimates suggest that between five hundred kilograms and a tonne of discarded nang canisters can accumulate at a single festival. The canisters are steel and technically recyclable, but the infrastructure for recycling them is inconsistent, and their presence on the festival grounds — in bathrooms, under stands, scattered through grass — indicates that most of them are not being recycled.

Nitrous oxide is also a greenhouse gas. Atmospheric concentrations have been rising at approximately one part per billion annually. As the third most important greenhouse gas after carbon dioxide and methane, it is a contributor to global warming and a major scavenger of stratospheric ozone. The agricultural sources of atmospheric nitrous oxide are far larger than recreational use, but recreational use is not zero, and the trend is upward.

This is not the primary harm argument against nangs. The neurological case is the primary harm argument. But the environmental cost is real, it is visible, and it is a marker of the scale of a phenomenon whose human costs remain partly hidden.

The Conversation We Need to Have

Sober Standard’s broader coverage of the silent epidemics in substance use consistently makes the same point in different contexts: the substances that cause the most harm at population level are frequently the ones whose harms are most normalised, most legal, and most difficult to see clearly because they are so embedded in ordinary social contexts.

Alcohol kills approximately 380 Americans daily. Prescription drug misuse is an epidemic that consumed millions of lives before it was named as one. And nangs — sold at service stations, delivered by app, scattered across festival grounds in their hundreds of thousands — are producing a growing tide of neurological presentations in hospital neurology wards, most of which are in people under thirty, most of which were entirely preventable, and all of which were preceded by months of use of a product the person believed was harmless.

The definitive article on nangs is not the one that says they are unambiguously catastrophic for everyone who uses them, because that is not what the evidence shows. The definitive article is the one that says: we are minimising, we are under-counting, we do not yet know the long-term population-level effects of a drug that a generation of young Australians has been using with essentially no formal guidance, and the clinical signals that are emerging from the neurology literature should be treated as the early warnings they are rather than as isolated edge cases.

The addiction treatment resources at Sober Standard cover the full range of options for people whose nang use has become problematic. The relapse resources are relevant to the habit-forming quality of a substance that many users find difficult to stop despite wanting to. The free sobriety calculator works for any substance from any quit date. The drug assessment tool asks the questions that help clarify whether use has crossed the line from recreational to problematic. The healing timeline calculator includes cannabis and other substances and shows what the body does when it is allowed to stop.

And if you have noticed tingling in your hands and feet and you have been using nangs regularly, please do not wait to see a doctor. Tell them about the nang use. Get your B12 levels tested. Start supplementing if they are low. Stop using. The clinical literature gives reason to believe that early intervention produces much better outcomes than late intervention. The window in which the damage is fully reversible is real. Getting to a doctor before that window closes is the most important thing you can do.

What This Piece Is Asking For

Not a ban, though the case for tighter supply restriction is strong and Western Australia’s 2024 regulations represent a model that other states should be adopting now rather than waiting for the case to become even clearer. Not panic, because panic produces media coverage that functions as advertising and drives the curiosity that normalises use.

What this piece is asking for is proportionality. The clinical evidence for harm from heavy nitrous oxide use is now substantial enough, and the evidence that heavy use is more common than previously thought is now consistent enough, that the cultural treatment of nangs as a trivial, consequence-free diversion is no longer justified by anything except inertia and the commercial interests of a delivery industry.

The gap between what we know about nang harms and what is being communicated to the people who use them is exactly the kind of gap that turns manageable public health problems into crises. We have been filling that gap with silence, with the legal fiction of cream-charger sales, and with a harm reduction discourse that was calibrated for the casual festival user and has not kept pace with the emergence of a population of heavy home users ordering tank nangs by the case.

It is time to close the gap.

The Full Sober Standard Resource Directory for Nang-Related Support

If you are concerned about your own or someone else’s nang use, the following Sober Standard resources are directly relevant:

Primary sources: Zaloum et al., Lancet Public Health, 2025 (doi: 10.1016/S2468-2667(24)00298-6); Grigg et al., Drug and Alcohol Review, 2025 (EDRS Australia 2021-2023); Simpson et al., Clinical Case Reports, 2023 (spinal cord degeneration case report); German hospital neurological study 2020-2024; Australian Drug Foundation nitrous oxide overview; WA Government Department of Health tougher nang regulations, 2024; Global Drug Survey 2021.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. If you or someone you know is experiencing neurological symptoms following nitrous oxide use, please seek medical attention immediately and consult a qualified healthcare provider.

Author: Carter Davies

Music, Travel and Sobriety writer for Sober Standard. More articles can be found here and on X https://soberstandard.com/profile/carter-davies/