Nicotine reduces body weight by raising the resting metabolic rate while blunting the expected increase in food intake in response to the increase in metabolic rate.

Can vaping cause you to lose weight?

E-cigarettes may help quitters to control their weight through continued exposure to the appetite-suppressant effects of nicotine and behavioural aspects of vaping.

Does nicotine cause belly fat?

But new research has found that heavy smokers are more likely to get pot bellies. Scientists say that while people who light up may have better control of their overall weight, heavy tobacco use tends to push fat into central areas, resulting in a protruding tummy.