Does Weed Raise Your Metabolism? What the Research Shows

What Does “Raising Your Metabolism” Mean?

Metabolism includes the processes your body uses to convert and use energy. In this question, people usually mean metabolic rate, or how much energy the body uses over a period of time.

Three different outcomes are often confused:

• Metabolic rate: How quickly your body uses energy.
• Appetite: How hungry you feel and how much you want to eat.
• Body weight: An outcome influenced by energy intake, expenditure, and other factors over time.

A change in appetite or body weight does not, by itself, show that someone’s metabolic rate increased.

What Human Studies Say About Cannabis and Metabolism

A small smoking study found a short-term increase

In a placebo-controlled study published in 1978, researchers tested eight participants and found that smoking marijuana increased metabolic rate. The effect peaked approximately 15 minutes after smoking. Breathing measurements also changed.

This is evidence of an acute effect under the study’s conditions. It does not establish a lasting increase in resting metabolism, a dependable number of extra calories burned, or a weight-loss benefit. The study is also too small to predict what will happen for every person or with today’s different cannabis products.

Changes in metabolic hormones do not prove faster calorie burning

A 2020 randomized crossover study examined 20 cannabis users after oral, smoked, vaporized, or placebo cannabis. Researchers measured hormones involved in appetite and metabolism, including insulin, GLP-1, and ghrelin. Cannabis changed some of those hormone responses, chiefly insulin.

However, the study measured hormone concentrations rather than demonstrating a sustained increase in daily calorie expenditure. Its findings show that cannabis can influence metabolic signalling. They do not establish that weed is a reliable metabolism booster.

Why Can Weed Make You Hungry?

THC can influence how appealing food feels and how much people consume. Increased hunger is not proof that the body needs to replace calories burned by a faster metabolism.

In a 2019 placebo-controlled trial involving 17 healthy participants, oral THC increased liking and wanting ratings for high-calorie food images. Participants also drank more milkshake after THC than after placebo when allowed to consume it normally.

This helps explain why the “munchies” and a possible short-term metabolic effect can coexist. Appetite and energy expenditure are separate processes, and extra food intake can affect the overall balance.

THC findings should also not automatically be applied to CBD products. Our guide to the differences between THC and CBD explains why those compounds should be considered separately.

Does Lower Body Weight Among Cannabis Users Prove Faster Metabolism?

No. An association between cannabis use and lower body weight does not establish the cause.

A 2019 prospective study followed approximately 33,000 adults over three years. After statistical adjustment, cannabis-use groups had smaller increases in body mass index than people who had never used cannabis. Importantly, BMI increased across all groups. The finding was about less weight gain, not proof that cannabis caused weight loss or increased metabolic rate. The study also relied on self-reported cannabis use, height, and weight.

A separate 2021 study used genetic data to investigate whether cannabis use could causally influence obesity-related traits. It found little evidence that cannabis affected BMI, waist circumference, or waist-to-hip ratio. This approach has its own limitations, but it further challenges the claim that cannabis reliably makes people leaner.

Taken together, these studies leave the explanation uncertain. They do not justify treating lower average weight among some cannabis users as evidence of faster metabolism.

Do Edibles, Vapes, or Particular Strains Boost Metabolism?

The research discussed here does not establish a dependable metabolism-boosting benefit for any particular strain, THC strength, edible, or vape. The small metabolic-rate study tested smoked marijuana. The later study comparing oral, smoked, and vaporized cannabis examined hormone responses. Neither provides a basis for choosing a product to increase long-term calorie expenditure.

If you choose to buy weed online from a retailer such as Budora, compare the stated THC and CBD content rather than selecting a product on a promise of faster metabolism. Our guide to reading cannabis labels explains the product information to look for.

Can Weed Be Used to Burn More Calories?

There is no dependable calorie-burning estimate you can apply to cannabis use. The evidence reviewed here does not establish how many additional calories a person would burn, how long any increase would last, or whether it would outweigh changes in food intake.

The practical conclusion is that cannabis should not be treated as a proven tool for increasing metabolism or managing weight. A short-term laboratory finding is not enough to support that use.

Conclusion

Weed may briefly raise metabolic rate after smoking, but evidence for a lasting metabolism boost is not established. THC can also increase food intake, and studies linking cannabis use with lower BMI do not prove faster calorie burning. Cannabis affects appetite and metabolic processes, but those effects should not be mistaken for a dependable fat-loss benefit.