African Mango

botanicalafrican-3-ene

What is it

African mango refers to the seed (kernel) of Irvingia gabonensis, a tree native to West and Central Africa. Standardized seed extracts (often labeled IGOB-131) are marketed as weight-loss supplements, with claims based on early small trials suggesting effects on body weight, cholesterol, and blood sugar.

How it works

The proposed mechanism of African mango extract involves several actions: high soluble fiber content (about 14% of seed weight) may delay gastric emptying and absorption of dietary fat; specific compounds in the seed may inhibit alpha-amylase, slowing carbohydrate digestion; and the seed has been reported to affect adipocyte differentiation and leptin levels in laboratory studies. Clinical trials, almost all conducted by a small group of researchers in Cameroon, have shown notable effects on weight, waist circumference, and metabolic markers. However, larger and independent trials are lacking, and a systematic review in 2013 concluded that current evidence is insufficient to support firm conclusions about effectiveness.

Evidence for 4 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Weight loss

Grade C

Moderate evidence

Several small randomized trials, mostly from one research group, have reported significant reductions in body weight, waist circumference, and body fat with IGOB-131 extract over 10-12 weeks. Independent replication and longer-term data are limited.

Cholesterol and lipids

Grade C

Moderate evidence

Studies report reductions in total cholesterol, LDL, and triglycerides with African mango supplementation. Findings should be interpreted cautiously given the limited number of independent studies.

Blood glucose control

Grade C

Moderate evidence

Trials have shown reductions in fasting glucose with African mango supplementation. Mechanism may involve fiber-related slowing of carbohydrate absorption.

Inflammation markers

Grade D

Mixed evidence

Reductions in C-reactive protein and other inflammation markers have been reported in trials, though independent confirmation is needed.

2 commercial forms

IGOB-131 standardized extract

Standardized to fiber and active components

The most-studied form, used in nearly all clinical trials. Typically dosed at 150 mg twice daily.

Irvingia gabonensis seed powder

Variable potency depending on source

Less standardized; may be used in some traditional preparations.

Dosage

Most studies have used 150-300 mg of IGOB-131 standardized extract twice daily before meals. Higher doses have been used in some trials. There is no formal recommended intake.

When and how to take it

Most studies have used dosing 30-60 minutes before main meals to maximize the proposed effects on appetite and digestion. Take with a full glass of water. Separate from other medications by at least 1-2 hours to avoid absorption interference from fiber.

Food sources

Food	Amount	%DV
Irvingia gabonensis seed kernels (used as cooking thickener in West Africa)	concentrated source	—

Safety

Generally well tolerated in short-term trials. Reported side effects include headache, sleep disturbance, mild gastrointestinal symptoms, and flatulence. Long-term safety data are limited. Quality and consistency of commercial products vary.

Who should be cautious

Avoid in pregnancy and breastfeeding due to insufficient safety data. People with diabetes should monitor blood sugar more closely. Those taking medications that require consistent absorption should separate timing from African mango by at least 1-2 hours.

Interactions

Because of its potential effects on blood sugar and lipids, African mango may interact with diabetes medications (insulin, sulfonylureas) and cholesterol-lowering drugs, potentially amplifying their effects. Its fiber content may slow absorption of oral medications taken at the same time.

Frequently asked questions

Is African mango proven to help with weight loss?⌄

Early studies suggest benefit, but most evidence comes from a single research group. Independent replication is limited, so confidence is moderate at best.

Is African mango the same as the mangoes I eat?⌄

No. It refers to Irvingia gabonensis, a different species. The supplement uses the seed kernel, not the fruit flesh.

Is IGOB-131 important?⌄

It's the proprietary extract used in most clinical trials. Products without this standardization may differ in active content.

Will African mango interact with my medications?⌄

Its blood-sugar and cholesterol effects may add to those of diabetes and lipid medications. Fiber may slow absorption of other drugs. Separate dosing by 1-2 hours.

How long should I try African mango?⌄

Most trials have lasted 10-12 weeks. If you don't see effects in this timeframe, continued supplementation may not be useful.

References

Irvingia gabonensis (Wikidata) — Wikidata link
Irvingia (ChEBI 167380) — ChEBI link

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Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you're pregnant, breastfeeding, on medications, or managing a chronic condition.