Can I vape while breastfeeding?

The verdict

Vaping is not the goal, but it is not a reason to stop breastfeeding either, and the NHS is specific about the order of preference.

If you are breastfeeding, the NHS advises using licensed nicotine replacement therapy products for help with quitting smoking and staying smoke-free. If you do choose to use an e-cigarette to help you stay smoke-free, it says, it is still better to carry on breastfeeding, as the benefits will outweigh any potential harm. And it adds one piece of practical timing: it is best to vape after breastfeeding your baby.

That is three separate statements and they need reading together. NRT first. Vaping is acceptable if it keeps you off cigarettes. Feeding continues either way.

Vaping compared with smoking, and with nothing

The NHS position on relative risk is clear: while using an e-cigarette is safer than smoking, it is not completely risk-free. As well as nicotine, e-cigarette liquid and vapour can contain toxic substances, although these are mostly at much lower levels than in cigarette smoke. UK expert reviews have concluded that in the short and medium term, vaping poses a small fraction of the risks of smoking.

The comparison that matters depends on where you are starting from. If you are a smoker, switching completely to vaping is a substantial reduction in harm and the NHS supports it. If you do not smoke, taking up vaping introduces nicotine dependence and exposure that were not there before, and no health body recommends that.

The Australian Breastfeeding Association is blunter than the NHS on the product itself: vapes are known to be harmful, they often contain nicotine even when labelled nicotine-free, and they contain other toxic substances that babies may be exposed to in their surroundings or through their mother's breast milk.

What reaches your baby

Nicotine passes into breast milk. LactMed records that cigarette smoking reduces milk yield, that maternal smoking is a major risk factor for sudden infant death syndrome, and that nicotine may interfere with normal infant lung development.

Nicotine has a short half-life, which is the basis for the NHS timing advice. Vaping straight after a feed rather than before one gives the longest interval before the next feed.

As with smoking, the exposure in the air and on your skin and clothes matters as much as the exposure in milk. Do not vape in the same room as your baby, in the car, or while holding them. Aerosol is not steam, and "it disappears" is not the same as "it is not there".

Nicotine-free vapes

Labelling is unreliable, as the Australian Breastfeeding Association notes, and nicotine-free products still deliver flavourings and other constituents by inhalation. Nicotine-free vaping is not a way to make this page's answer different.

The bed-sharing rule applies

The Lullaby Trust's list of circumstances in which co-sleeping is very dangerous includes anyone in the bed who smokes, and the NHS says the same. Vaping sits in an awkward position in guidance written before vapes were common, and the safe course is to treat it the same way: do not share a sleep surface with your baby if you vape.

The reason is not only nicotine on the skin. It is that the safest sleep advice in this area is written to be applied conservatively, and there is no benefit to your baby from you gambling on a distinction the evidence has not yet settled.

Our page on feeding lying down explains how to plan night feeds when bed-sharing is off the table for you.

Getting off both

NHS stop smoking services support breastfeeding parents and will discuss vaping and NRT together rather than treating them as rival camps. That conversation is worth having, because using a vape indefinitely was never the plan for most people who started with one.

LactMed records that the Academy of Breastfeeding Medicine considers nicotine replacement products compatible with breastfeeding, with the type of product determined by clinical need. This site publishes no doses, so ask a pharmacist or the stop smoking service which product suits you.

If you do keep vaping, the useful goals are: never in the same room as your baby, always after a feed rather than before, hands washed before you pick them up, and no bed-sharing.

Devices around a baby

One risk that gets almost no attention is the hardware itself. E-liquid is concentrated nicotine, and swallowing even a small quantity is dangerous to a small child. Refill bottles, pods and disposable devices left on a sofa arm or a bedside table are exactly where a crawling baby or a toddler will find them.

Store liquids and devices out of reach and out of sight, keep child-resistant caps closed, and dispose of used disposables properly rather than dropping them in an open bin. Batteries in vaping devices can also overheat, so do not charge them on a bed or under a pillow.

If you think your child has swallowed e-liquid or chewed a device, treat it as urgent and seek medical advice immediately rather than waiting for symptoms.

Where guidance differs

There is a real difference of tone here, and it is worth naming.

The UK, through the NHS, is comparatively permissive: NRT is preferred, but vaping to stay off cigarettes is acceptable and is never a reason to stop breastfeeding. NHS inform in Scotland gives the same relative-risk framing.

Australia, through the Australian Breastfeeding Association, is more negative about the products themselves, describing vapes as known to be harmful and frequently containing undeclared nicotine, while still advising that breastfeeding should continue.

Canada, through the Canadian Paediatric Society, emphasises being smoke-free and treats second-hand exposure as the key risk to reduce after birth.

Every one of them agrees on the conclusion that matters: whatever you are inhaling, the answer is to get help stopping, not to stop breastfeeding.