Blog · Ingredient math
African Mango for Metabolism: What the Evidence and the Label Say
African mango for metabolism rests on weak evidence. A small 10-week trial used 150 mg before lunch and dinner, or 300 mg a day. Glyco Defender lists African mango seed extract 2nd in its blend, so it holds at most 7.7 mg per serving, about 2.6% of that studied amount.
Written by the Glyco Defender label deskUpdated · 4 min read

Does African mango really affect metabolism?
The evidence is weak. Memorial Sloan Kettering says most studies are small and of poor method, and human data on blood sugar are limited (MSKCC, Irvingia gabonensis (African mango)).
NIH reaches a similar view. African mango was studied at 150 mg before lunch and dinner in a small 10-week trial, and evidence remains limited (NIH ODS, Dietary Supplements for Weight Loss).
How much African mango is in Glyco Defender?
At most 7.7 mg per serving. The seed extract is 2nd of 21 blend lines, so it holds no more than 15.47 divided by 2.
| Measure | Amount a day |
|---|---|
| Small trial | 300 mg (150 mg twice) |
| Label ceiling (2nd place) | At most 7.7 mg |
| Even split | About 0.74 mg |
| Share of trial dose | Up to about 2.6% |
Actual content is not printed, so the real figure may be lower.
What does the 10:1 extract note mean?
It means about 10 g of seed went into 1 g of extract. It is the only 10:1 line on the label; the rest are 20:1.
Researchers warn that the ratio shows yield, not potency, and does not change the weight printed (Monagas et al., Front Pharmacol 2022). Never multiply 7.7 mg by 10 to guess a bigger dose.

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See packsAre there cautions with African mango?
Yes. Reported side effects include gas, headache and trouble sleeping, and one case of kidney failure needing dialysis was reported (MSKCC, Irvingia gabonensis (African mango)).
The same source lists use with antidiabetic drugs as a caution because of a possible added effect on glucose.
Do not stop or change a diabetes medicine for a supplement. Ask first.
See the how to use page for the label directions.
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FAQ01
Questions about African mango
Is African mango the same as a regular mango?
No. African mango, Irvingia gabonensis, is the bush mango. The label uses its seed extract, not the fruit you eat, and the photo on our pages shows the fruits and seeds.
Does African mango burn fat?
Evidence is too weak to say so. MSK calls the weight-loss data small and poorly designed (MSKCC, Irvingia gabonensis (African mango)), and NIH describes one small trial (NIH ODS, Dietary Supplements for Weight Loss). No study tested Glyco Defender itself.
Is African mango safe to combine with metformin?
Ask your doctor first. MSK lists antidiabetic drugs as a caution because of a possible added glucose-lowering effect, shown in rats (MSKCC, Irvingia gabonensis (African mango)). Do not change your metformin on your own.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a licensed U.S. retail desk for Glyco Defender, not by the manufacturer or the label's distributor. Buying through our order links earns us money.
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