Title: Does Marijuana Cause Weight Loss?
Headings: Does Marijuana Cause Weight Loss?
Does Marijuana Cause Weight Loss?
Marijuana and Weight Gain
Marijuana Can Stimulate Appetite
Reduced Athletic Performance
Marijuana and Body Mass Index (BMI)
Can CBD Oil Affect Weight?
Could Marijuana Cause Weight Loss?
A Word From Verywell

Content: In addition, different strains of marijuana will have varying concentrations of cannabinoids, including tetrahydrocannabinol (THC) and cannabidiol (CBD), and terpenes. These psychoactive chemicals act on the CB1 and CB2 receptors in the brain that make up the endocannabinoid system. These receptors play a key role in regulating appetite, stress, and pain sensations, and combined with other factors, can impact weight gain. Marijuana Can Stimulate Appetite
Whether smoked or eaten, cannabis affects the neurobiological circuits that control appetite, causing a temporary increase in appetite, resulting in the munchies. According to a 2015 study from the Yale University School of Medicine, activation of the CB1 receptor from THC increases feeding behaviors and leads to decreased activity of the neurons responsible for feelings of satiety. 3
The effect is known to be considerable and one that can be used in medical practice to stimulate appetite in those with cancer, advanced HIV infection, and other serious medical conditions. 4
Appetite stimulation doesn't inherently translate to weight gain, however. Within the HIV population, marijuana may help stifle weight loss but does little to reverse the wasting that can accompany serious illness. This suggests that appetite stimulation is only part of what triggers weight gain in certain cannabis users. Reduced Athletic Performance
Cannabis users have been observed to show marked decreases in performance, steadiness, reaction time, and psychomotor performance for up to six hours following use, all of which affect a person's ability to drive.