Podcast episode 123 (in German)

Nicotine without smoke – a real effect and a dependence on top of it

October 31, 2026

In 41 double-blind studies, nicotine improved 6 of 9 performance domains — small, but real. This episode puts into context what the effect is worth, why nicotine pouches may not legally be sold in Germany and why dependence comes before every one of these numbers.

What it is about

Nicotine is the substance in tobacco that causes dependence; what makes people ill is above all tar and the other combustion products that come along every day because of the dependence. Against this background, the episode examines the meta-analysis the scene cites and finds a cleanly measured, small effect lasting one hour in the lab — which the authors themselves read as part of the explanation for dependence. Then it turns to nicotine pouches: legally an unauthorized novel food, yet used by adolescents and stronger in the blood than expected. At the end comes the distinction between nicotine replacement for smokers, which replaces an existing dependence, and nicotine for non-smokers, which creates it in the first place.

Key points

Heishman’s 2010 meta-analysis pools 41 double-blind, placebo-controlled laboratory studies from 15 years, in non-smokers or in smokers not in withdrawal.
In 6 of 9 domains it found significant improvements, for example in fine motor skills, attention and working memory, with effect sizes of 0.16 to 0.44 — nobody notices the lower half in themselves.
In Germany, 131,000 deaths in 2023 were attributable to smoking, 13.7 percent of all deaths; worldwide, according to the World Health Organization, it is more than 7 million a year.
In a survey by the German Federal Institute for Public Health among 7,001 young people, 1.9 percent of 12- to 17-year-olds had used nicotine pouches in the previous 30 days, and 4.3 percent of 18- to 25-year-olds.
In 15 smokers, the strongest pouch variant tested reached a peak of 29.4 nanograms per milliliter in the blood, the cigarette in the same experiment 15.2; the pulse rose by more than 20 beats with both.
According to a Cochrane review of 133 studies, nicotine replacement from the pharmacy increases the chance of being smoke-free after 6 months by a factor of 1.55.
On long-term consequences, a review collected 62 studies, 17 of them industry-funded; the longest study that could be found on the oral mucosa ran for 28 days.

Where the data stop

The effect from the meta-analysis is real but applies to one hour in the lab, not to a working day or an exam. The authors themselves write that precisely these favorable effects help explain starting to smoke and maintaining dependence. There are no data on long-term use in non-smokers: nobody has followed them for years, neither for performance nor for dependence nor for the gums, and the adult data come almost entirely from people with a history of tobacco use. For adolescents, the World Health Organization points out that nicotine can affect brain development, explicitly including attention and learning.

Legally, nicotine is authorized in the European Union neither as a food nor as an ingredient; placing the pouches on the market is prohibited in Germany. Nicotine replacement for smokers must be kept clearly separate from this, and anyone who has got away from smoking with pouches is not meant here — a step back to the cigarette would be the costliest misunderstanding. Anyone who wants to quit can find proven help at a pharmacy, a doctor’s practice or a counseling center.

Listen (in German)

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Published on October 31, 2026.

The topic in the database

The cognitive effect is real, small and short-lived.Nicotine without smoke (pouches, patches, lozenges)

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Information only, not medical advice and not a usage or dosage recommendation. Prescription-only and unapproved substances belong in the hands of a physician. Last updated: 2026-10-09.