Is snus harmful? Risks & side effects at a glance

Snus is a smokeless tobacco product that is widespread above all in Scandinavia and Switzerland. Many people ask: is snus harmless, or does it carry health risks? The short answer: snus is not risk-free. In this article we summarise the most important side effects and possible long-term consequences in a factual way, so that you can make an informed decision.

What is snus and how is it used?

Snus is a moist, ground tobacco for oral use. It is placed loose or in small portion pouches under the upper or lower lip. The nicotine is absorbed into the blood through the oral mucosa. Snus is not smoked, chewed or swallowed. It should be distinguished from tobacco-free nicotine pouches, which are used in a similar way but contain no tobacco.

In Switzerland, snus has been legal since 2019. Since 01.10.2024 the Tobacco Products Act has been in force: snus and nicotine pouches may only be sold to people aged 18 and over, including online.

What makes snus different?

No smoke: nothing is burned with snus. So there is no smoke, no tar and no carbon monoxide. That does not mean, however, that snus is harmless.
Discretion: snus can be used without smoke or smell for others.
Many varieties and strengths: from classic tobacco flavour to minty variants, in different formats and nicotine strengths.

How does snus affect the body?

The effect depends heavily on the nicotine content, the format and individual tolerance.

Short-term effects

Stimulation: nicotine has a stimulating effect; pulse and blood pressure rise briefly.
Typical side effects: headaches, dizziness, palpitations, nausea or sweating, especially in users who are not used to it or at too high a dose.
Irritation in the mouth: burning or tingling where the portion sits.

Long-term effects

Dependence: nicotine is addictive because it affects the brain's reward system. Anyone who uses it regularly quickly gets used to it.
Possible health risks: regular use over years can have consequences, which we discuss below.

Is snus harmful? The risks and side effects in detail

Because snus is not burned, it is often underestimated. It is, however, by no means risk-free.

Possible side effects

Gums: irritation and gum recession where the portion is regularly placed.
Teeth: discolouration with long-term use, especially with brown snus.
Oral mucosa: whitish changes in the mucosa, especially with strong varieties and frequent use.
Nausea and dizziness: above all with high amounts of nicotine or if you are not used to it.

Possible long-term consequences

Cancer: studies suggest that regular use of oral tobacco may increase the risk of certain cancers, for example of the oral cavity or the pancreas.
Heart and circulation: nicotine raises pulse and blood pressure. Regular intake can put a strain on the cardiovascular system.
Pregnancy: nicotine can harm the unborn child. Pregnant and breastfeeding women should not use nicotine products.
Psychological dependence: in addition to physical dependence, a habit often develops that is hard to break.

Snus compared: differences from cigarettes and chewing tobacco

Snus and cigarettes

Difference: no smoke and no combustion, so no tar and no carbon monoxide.
In common: both contain nicotine and are addictive. Snus is not risk-free either.

Snus and chewing tobacco

Difference: snus is not chewed but rests under the lip.
In common: similar risks for the oral mucosa and gums.

How can you limit the strain?

If you use snus as an adult, these points help keep the strain within limits:

Choose the strength consciously: strong and extra-strong varieties are intended only for experienced users. The article Snus dosage and strength in mg gives you guidance.
Limit the amount: do not use several portions at the same time or directly one after another.
Change position: do not always place the portion in the same spot, to relieve the gums.
Oral hygiene and dentist: good dental care and regular check-ups help detect changes early.
Nicotine-free variants: if you like the ritual but want to do without nicotine, you will find nicotine-free pouches. More in the article Nicotine-free snus in Switzerland.

If poisoning is suspected: severe nausea, vomiting, racing heart or impaired consciousness can indicate nicotine poisoning. Remove the portion immediately and call Tox Info Suisse on 145, or 144 in an emergency. Always keep snus and nicotine pouches out of the reach of children and pets.

Pros and cons of snus at a glance

What users appreciate

Smoke-free: no smoke, no smell for others, no ashtray.
Discreet use: easy to use without disturbing others.
Variety of flavours: from classic to minty, the choice is wide.

Disadvantages

Health risks: from gum problems to possible long-term consequences, use is not risk-free.
Dependence: nicotine is addictive, and the higher the strength, the faster.
Legal restrictions: in the EU, snus is banned except in Sweden. If you travel, you should know the rules. More in the article Snus when travelling.

Conclusion

Snus is not burned and produces no smoke, but it is not risk-free. Nicotine is addictive, and regular use can strain the mouth, gums, heart and circulation. If you do not smoke, do not start. If you use snus as an adult, choose the strength consciously, limit the amount and have your mouth and teeth checked regularly. You will find an overview of varieties and strengths in the Snus category.

Note: Nicotine products are for adults aged 18 and over only. Nicotine is addictive. This article does not replace medical advice.