7 doctors weighed in:
Can smoking marijuana cause weight loss?
7 doctors weighed in

Dr. Robert Kwok
Pediatrics
3 doctors agree
In brief: Uncertain
Two research studies that made the news in 2011 found 14%-17% of marijuana users (3 or more times/week) were obese.
Presumably, many other mj users were overweight but not obese. Their findings in people who did not use mj showed 22%-25% of non-users were obese. Perhaps people who tend to become mj users are less obese to start with, or maybe mj users use mj instead of food to soothe their stress.

In brief: Uncertain
Two research studies that made the news in 2011 found 14%-17% of marijuana users (3 or more times/week) were obese.
Presumably, many other mj users were overweight but not obese. Their findings in people who did not use mj showed 22%-25% of non-users were obese. Perhaps people who tend to become mj users are less obese to start with, or maybe mj users use mj instead of food to soothe their stress.
Dr. Robert Kwok
Dr. Robert Kwok
Thank
Dr. Lisa Hogan
Surgery
2 doctors agree
In brief: Usually the opposite
Marijuana has a well-known association with an increased desire to eat (commonly called getting the munchies), and often an increased desire to eat sweets.
Regular use of marijuana or tetrahydrocannabinol (thc, the active ingredient in marijuana) usually increases appetite and increases weight gain. That's one of the reasons it is advocated for cancer patients and anorexics.

In brief: Usually the opposite
Marijuana has a well-known association with an increased desire to eat (commonly called getting the munchies), and often an increased desire to eat sweets.
Regular use of marijuana or tetrahydrocannabinol (thc, the active ingredient in marijuana) usually increases appetite and increases weight gain. That's one of the reasons it is advocated for cancer patients and anorexics.
Dr. Lisa Hogan
Dr. Lisa Hogan
Thank
Get help from a real doctor now
Dr. Bennett Machanic
Board Certified, Neurology
48 years in practice
55M people helped
Continue
108,000 doctors available
Read more answers from doctors