Cannabinoid Encyclopedia

Focused research review

How does THC affect appetite and metabolism?

What evidence connects THC or dronabinol with appetite, anorexia, weight, or metabolic outcomes?

Updated July 2026 10 research sources Human research included

The short answer

What is the bottom line?

Research has examined THC and appetite and metabolism. This page brings together 2 human-study sources and 8 research reviews. Human research is included, although its design and scope vary. The studies do not all test the same product, dose, group of people, or outcome, so they cannot be reduced to one answer for every person or product. 1

Choose your next step

Want the quick path or the full picture?

Use this guide the way you need to. Start with the practical question, then open the study detail only when it helps answer something about THC and appetite and metabolism.

What researchers studiedSee the main areas and the evidence behind each one. Safety and limitsKeep product, dose, medications, and context in view. Open the sourcesGo directly to the studies and references used here.

Key takeaways

What to know first

  1. 1

    Research on THC and appetite and metabolism covers Appetite and metabolic outcomes; those areas should not be combined into one claim. 1

  2. 2

    Human research is included, although its design and scope vary. 2

  3. 3

    Dose, formulation, route, study population, and outcome can change how closely a study applies to a real-world question. 3

Research areas

What researchers studied about THC and appetite and metabolism

These are the main questions represented in the current literature. Each link opens a source used to build the overview.

Too limited for a firm answer

Appetite and metabolic outcomes

This part of the literature focuses on Appetite and metabolic outcomes. Studies may use different compounds, formulations, doses, routes, groups of people, and outcomes, so the details of each source matter. 2

How strong is the research?

Not every study answers the same question

This page separates research in people, research reviews, and earlier-stage biology before interpreting the larger question.

2 sources

Human studies

Research involving people is closest to everyday health questions. The product, dose, population, and outcome still determine what each study can show.

8 sources

Reviews and evidence summaries

Reviews can compare several studies at once. Their conclusion is only as strong and as relevant as the studies they include.

Not prominent

Lab, animal, and mechanism research

Early-stage research can explain biological interest. It cannot, by itself, show that the same effect happens in people.

What these studies actually looked at

The research on THC and appetite and metabolism is not one kind of study. This source set includes 6 narrative or expert reviews, 2 systematic reviews or meta-analyses, and 1 clinical study in people. 3

The recorded populations or models include people or patients (10 sources). A result from one group or model should not be assumed to apply to another. 4

The most common recorded outcome focus is appetite or metabolic outcomes (10 sources). Closely related outcome names can still describe different measurements. 5

The THC and appetite and metabolism source set also contains findings or reviews that remain too limited, indirect, or mixed for a broad answer. That uncertainty is part of the result, not an empty space to fill with assumptions. 6

Examples from the literature

What did the studies actually look at?

Each example names the research question and the study details recorded for that source.

systematic review or meta-analysis

Systematic review and meta-analysis of cannabinoids in palliative medicine.

On this page, this source examines THC and appetite and metabolic outcomes. 1

Study type
systematic review or meta-analysis
Population or model
people or patients
Outcome focus
appetite or metabolic outcomes
Evidence stage
evidence still limited

narrative or expert review

[Dronabinol (delta9-tetrahydrocannabinol) in long-term treatment. Symptom control in patients with multiple sclerosis and spasticity, neuropathic pain, loss of appetite and cachexia].

On this page, this source examines THC and appetite and metabolic outcomes. 2

Study type
narrative or expert review
Population or model
people or patients
Outcome focus
appetite or metabolic outcomes
Evidence stage
evidence still limited

clinical study in people

Comparison of orally administered cannabis extract and delta-9-tetrahydrocannabinol in treating patients with cancer-related anorexia-cachexia syndrome: a multicenter, phase III, randomized, double-blind, placebo-controlled clinical trial from the Cannabis-In-Cachexia-Study-Group.

On this page, this source examines THC and appetite and metabolic outcomes. 3

Study type
clinical study in people
Population or model
people or patients
Outcome focus
appetite or metabolic outcomes
Evidence stage
human research

systematic review or meta-analysis

Systematic review of megestrol acetate in the treatment of anorexia-cachexia syndrome.

On this page, this source examines THC and appetite and metabolic outcomes. 4

Study type
systematic review or meta-analysis
Population or model
people or patients
Outcome focus
appetite or metabolic outcomes
Evidence stage
evidence still limited

human research

The Effects of Dosage-Controlled Cannabis Capsules on Cancer-Related Cachexia and Anorexia Syndrome in Advanced Cancer Patients: Pilot Study.

On this page, this source examines THC and appetite and metabolic outcomes. 5

Population or model
people or patients
Outcome focus
appetite or metabolic outcomes
Evidence stage
human research

Safety and limits

What should readers keep in mind?

Research on THC and appetite and metabolism should be read beside safety. A compound can be non-intoxicating or naturally occurring and still have pharmacologic effects, side effects, interactions, or product-quality concerns. 2

Research doses are descriptions of what a study tested. They are not personal dosing instructions. Questions involving medications, pregnancy, children, driving, liver health, heart health, or serious symptoms deserve professional medical guidance.

Drug interactions Pregnancy and children Driving and impairment All safety topics

Common questions

Questions people ask

What evidence connects THC or dronabinol with appetite, anorexia, weight, or metabolic outcomes?

Relevant research is collected here. Human research is included, although its design and scope vary. 7

Why is there not always a yes-or-no answer?

The sources may test different products, doses, people, and outcomes, so a single conclusion can hide important differences. 8

Where can I read the original studies?

Use the numbered citations and the source list at the bottom of the page to open PubMed or DOI records. 9

Sources

Read the research

The numbered sources below support the main overview. Links open the PubMed record or DOI in a new tab.

  1. 1
    Systematic review and meta-analysis of cannabinoids in palliative medicine. systematic review or meta-analysis; evidence still limited PubMed 29400010 DOI 10.1002/jcsm.12273
  2. 2
    [Dronabinol (delta9-tetrahydrocannabinol) in long-term treatment. Symptom control in patients with multiple sclerosis and spasticity, neuropathic pain, loss of appetite and cachexia]. narrative or expert review; evidence still limited PubMed 23570087
  3. 3
    Comparison of orally administered cannabis extract and delta-9-tetrahydrocannabinol in treating patients with cancer-related anorexia-cachexia syndrome: a multicenter, phase III, randomized, double-blind, placebo-controlled clinical trial from the Cannabis-In-Cachexia-Study-Group. clinical study in people; human research PubMed 16849753 DOI 10.1200/jco.2005.05.1847
  4. 4
    Systematic review of megestrol acetate in the treatment of anorexia-cachexia syndrome. systematic review or meta-analysis; evidence still limited PubMed 15050664 DOI 10.1016/j.jpainsymman.2003.09.007
  5. 5
    The Effects of Dosage-Controlled Cannabis Capsules on Cancer-Related Cachexia and Anorexia Syndrome in Advanced Cancer Patients: Pilot Study. human research PubMed 31595793 DOI 10.1177/1534735419881498
  6. 6
    Cancer cachexia and cannabinoids. narrative or expert review; evidence still limited PubMed 10575285 DOI 10.1159/000057152
  7. 7
    Clinical utility of dronabinol in the treatment of weight loss associated with HIV and AIDS. narrative or expert review; evidence still limited PubMed 26929669 DOI 10.2147/hiv.s81420
  8. 8
    Dronabinol oral solution in the management of anorexia and weight loss in AIDS and cancer. narrative or expert review; evidence still limited PubMed 29670357 DOI 10.2147/tcrm.s126849
  9. 9
    Orexigenic and anabolic agents. narrative or expert review; evidence still limited PubMed 12608509 DOI 10.1016/s0749-0690(02
  10. 10
    The cancer cachexia syndrome. narrative or expert review; evidence still limited PubMed 9208884
See all 10 research sources

This complete source list is the deeper research layer for the page. Study type and evidence context are shown when they are available in the current record.

  1. [Dronabinol (delta9-tetrahydrocannabinol) in long-term treatment. Symptom control in patients with multiple sclerosis and spasticity, neuropathic pain, loss of appetite and cachexia]. narrative or expert review; evidence still limited / 1 linked research note PubMed 23570087
  2. Cancer cachexia and cannabinoids. narrative or expert review; evidence still limited / 1 linked research note PubMed 10575285
  3. Orexigenic and anabolic agents. narrative or expert review; evidence still limited / 1 linked research note PubMed 12608509
  4. Dronabinol oral solution in the management of anorexia and weight loss in AIDS and cancer. narrative or expert review; evidence still limited / 1 linked research note PubMed 29670357
  5. Comparison of orally administered cannabis extract and delta-9-tetrahydrocannabinol in treating patients with cancer-related anorexia-cachexia syndrome: a multicenter, phase III, randomized, double-blind, placebo-controlled clinical trial from the Cannabis-In-Cachexia-Study-Group. clinical study in people; human research / 1 linked research note PubMed 16849753
  6. Systematic review and meta-analysis of cannabinoids in palliative medicine. systematic review or meta-analysis; evidence still limited / 1 linked research note PubMed 29400010
  7. Clinical utility of dronabinol in the treatment of weight loss associated with HIV and AIDS. narrative or expert review; evidence still limited / 1 linked research note PubMed 26929669
  8. Systematic review of megestrol acetate in the treatment of anorexia-cachexia syndrome. systematic review or meta-analysis; evidence still limited / 1 linked research note PubMed 15050664
  9. The cancer cachexia syndrome. narrative or expert review; evidence still limited / 1 linked research note PubMed 9208884
  10. The Effects of Dosage-Controlled Cannabis Capsules on Cancer-Related Cachexia and Anorexia Syndrome in Advanced Cancer Patients: Pilot Study. human research / 1 linked research note PubMed 31595793