About Garcinia

Small pumpkin-shaped fruit from South and Southeast Asia, sold mostly in weight loss supplements.

Effectiveness Scores

Lower Cholesterol: 5.0/10 (moderate evidence).
HCA, the active compound in garcinia, may slow down how your body makes fat, which could lower triglycerides (the main type of fat in your blood) and cholesterol.
Why this rating: Pooled studies found garcinia lowered triglycerides and total cholesterol by a small amount and raised HDL, the "good" cholesterol, slightly. LDL, the "bad" cholesterol most doctors focus on, barely changed. The studies were small, and most were designed around weight loss rather than cholesterol. Given the liver risk, this is a small potential benefit for a real potential harm.
Weight Loss: 3.0/10 (moderate evidence).
HCA, the active compound in garcinia, may block an enzyme your body uses to turn extra carbohydrates into fat. In theory, that means less fat gets stored.
Why this rating: Garcinia has been tested quite a bit, and the effect is small. On average, people taking it lost about 2 pounds more than people taking a placebo, and one of the largest, best-run trials found no difference at all. Results vary widely from person to person. It's not an effective way to lose weight, and it carries a real risk of liver injury.
Appetite Suppression: 2.0/10 (moderate evidence).
Garcinia is often sold as an appetite suppressant. The idea is that HCA, its active compound, raises serotonin, a brain chemical that helps control hunger.
Why this rating: When garcinia has been tested against a placebo, people didn't feel less hungry. The appetite drop some users report is more likely the placebo effect, an upset stomach, or simply paying closer attention to what they eat while trying to lose weight. Garcinia has also been linked to serious liver injury, so trying it for appetite carries real risk for little expected benefit.
Blood Sugar Support: 2.0/10 (moderate evidence).
HCA, the active compound in garcinia, affects how your body handles carbohydrates, so it's been suggested that it could help with blood sugar.
Why this rating: In people, garcinia hasn't shown a meaningful benefit for blood sugar. It may still lower blood sugar enough to matter if you take diabetes medication, and garcinia has also been linked to serious liver injury, which makes it a risk without a clear upside. If blood sugar is your goal, berberine and cinnamon have stronger evidence and fewer safety concerns.

Understanding Effectiveness Scores

What does this mean?

Our effectiveness scoring system is based on scientific research and evidence. Each health outcome is rated on a scale of 1-10, with higher scores indicating stronger scientific support for the supplement's effectiveness.

1/10: Scientific evidence concludes that supplement is ineffective for purpose
2/10: No scientific evidence supports effectiveness
3/10: Inconclusive results regarding effectiveness
4/10: Minimal research on effectiveness
5/10: Limited evidence of effectiveness; may have potential benefits, but more research is needed
6/10: Some evidence supports the supplement's effectiveness, but research is mixed
7/10: Moderate evidence shows the supplement is effective for certain purposes, with limited population studies
8/10: Solid evidence suggests the supplement is effective, but research is not as extensive as higher levels
9/10: Strong scientific evidence supports the supplement's effectiveness, but some minor gaps in research remain (e.g., limited long-term studies or specific populations).
10/10: Ample scientific research demonstrates that the supplement is both highly effective and safe for long-term use.

Dosage & Timeline

Standard Dosages

Typical dose: 500 mg, taken 30 to 60 minutes before meals, up to three times a day
What to look for: the amount of HCA (hydroxycitric acid), the active compound. Products range widely, from about 20% to 60% HCA.

Most garcinia products also contain other ingredients, like caffeine or green tea extract. Many of the serious liver cases involved these blends, so check the full ingredient list.

Results Timeline

The studies ran 2 to 12 weeks. Most people in them lost little or no extra weight compared to a placebo.

All other outcomes may be noticed after extended use or lack enough studies to establish an effectiveness timeline.

Safety Information

Liver injury, and why France warns against garcinia:

Garcinia supplements have been linked to serious liver damage, including liver failure that led to transplants and deaths. In March 2025, France's national food safety agency advised the entire population not to take garcinia supplements, after reviewing cases from France, Europe, and North America. France suspended their sale the following month.

What makes this hard to plan around is that some of these reactions happened in people who had no previous health problems. There's no reliable way to know in advance who is at risk.

If you take garcinia anyway, stop right away and see a doctor if you notice yellowing skin or eyes, dark urine, pain in the upper right side of your stomach, or unusual tiredness.

Antidepressants and anxiety medication: Garcinia has been linked to serotonin syndrome in people taking SSRIs and similar antidepressants. Symptoms include heavy sweating, a racing heart, confusion, and muscle twitching, and it can require a hospital stay. Don't combine them.
Diabetes medication: Garcinia may lower blood sugar. If you take diabetes medication, it could push your blood sugar lower than expected.
Existing health conditions: Avoid garcinia if you have liver disease, a history of pancreatitis, or a psychiatric condition, or if you take medications that affect the liver.
Pregnancy and breastfeeding: Avoid. There isn't enough safety research.

Side Effects

Common side effects:

Stomach upset: nausea, diarrhea, bloating
Headache or dizziness
Dry mouth or a feeling of fullness

Rare side effects:

Liver injury, sometimes severe. See Safety.
Muscle breakdown (rhabdomyolysis), inflammation of the pancreas, and heart inflammation, reported in French and international safety reviews
Mania and other psychiatric reactions
Serotonin syndrome when combined with antidepressants. See Safety.
Allergic reactions: rash, itching, or swelling

Usage Information

Nearly everyone who takes garcinia takes it to lose weight, usually because it's marketed as blocking fat and curbing appetite. Some also take it for cholesterol or blood sugar.

The research shows little benefit for any of these, and garcinia has been linked to serious liver injury. Read the safety section before deciding.

User Experience

Gathered from reviews and forum posts, not from studies. What people report tells you what to expect. It does not tell you whether something works.

Reviews split into two groups of about equal size. One reports losing anywhere from 12 to 50 pounds. The other reports no change or problems like higher blood pressure, weight gain, and liver concerns. Positive reviews often mention less appetite and less bloating.

Results in real life look worse than in clinical trials. That may come down to how much products vary, incorrect dosing, and the fact that many garcinia products contain several other ingredients.

Alternative Names

Garcinia cambogia, Malabar tamarind, Brindle berry, Gambooge fruit

Garcinia