Alcohol appears to be linked more closely with weight gain, despite weed's tendency to trigger the munchies.
Weed gives you the munchies. It makes you hungry, reduces the natural signals of fullness, and may even temporarily make food taste better.
But despite eating over 600 extra calories when smoking, marijuana users generally don't have higher body-mass indexes. In fact, studies suggest that regular smokers have a slightly reduced risk of obesity.
Alcohol, on the other hand, appears to be linked with weight gain. A study published in the American Journal of Preventative Medicine found that people who drank heavily had a higher risk of becoming overweight or obese. Plus, alcohol itself is caloric: A can of beer has roughly 150 calories, and a glass of wine has about 120.
All things considered, alcohol's effects seem markedly more extreme — and riskier — than marijuana's.
When it comes to addiction profiles and risk of death or overdose combined with ties to cancer, car crashes, violence, and obesity, the research suggests that marijuana may be less of a health risk than alcohol.
Still, because of marijuana's largely illegal status, long-term studies on all its health effects have been limited — meaning more research is needed.
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