We are all familiar with munchies and how much we crave food after smoking cannabis, but learning more about this phenomenon can be helpful to many people. That's why scientists research how cannabis triggers hunger hormones. By now they identified specific brain regions that shift to 'hungry' mode while under the influence.
When the stomach is empty it releases a hormone called ghrelin, a signal to the brain that it's time to eat some food. Scientists found that THC, one of the active cannabinoids in cannabis, can boost appetite by triggering a ghrelin surge. THC also appears to inhibit the production of the appetite-suppressing leptin. This find can help many people suffering from loss of appetite. Severe appetite loss is a serious problem for people who struggle with many chronic illnesses, and is especially problematic in HIV/AIDS, cancer, heart disease, and some metabolic disorders.
Conditions such as chronic pain can decrease the desire to consume food. Some medications and conditions can also interfere with your appetite by causing nausea and vomiting. Many people feel aversion towards eating after going through nausea, but cannabis can help overcome this. THC enhances the sensory system by engaging the taste buds and making food taste better and eating a more satisfying part of the day.