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Green Coffee Bean Extract

Blood sugar · weight

MODERATE EVIDENCEVEGANREAD THE RESEARCH
Written to our editorial standards · reviewed against published research· Updated 5 Jun 2026
Last reviewed: May 30, 2026
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Green Coffee Bean Extract: Blood sugar · weight. Unroasted coffee rich in chlorogenic acid, studied for modest effects on blood sugar and weight. Standard dose 400 mg (50% chlorogenic acid), taken in the morning, about $14/month. Evidence rating: moderate evidence.

Where to buy

NOWFOODSGreen Coffee Extract90 VEG CAPSDIETARY SUPP.
RECOMMENDED
NOW Foods, Green Coffee Bean Extract
400 mg (50% chlorogenic acid) · Morning · ~$14/month

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NOWFOODSGreen Coffee Extract90 VEG CAPSDIETARY SUPP.BESTSELLER
Green Coffee Extract
NOW Foods
90 veg caps · $14 · ★ 4.6
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Green Coffee Bean Extract
Nutricost
120 capsules · $16 · ★ 4.6
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SOURCENATURALSGreen Coffee Extract60 TABLETSDIETARY SUPP.PREMIUM
Green Coffee Extract
Source Naturals
60 tablets · $15 · ★ 4.5
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SPORTSRESEARCHGreen Coffee Bean90 SOFTGELSDIETARY SUPP.PREMIUM
Green Coffee Bean
Sports Research
90 softgels · $19 · ★ 4.5
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What is Green Coffee Bean Extract?

Green, unroasted, coffee beans are rich in chlorogenic acid, a polyphenol largely destroyed by roasting. Chlorogenic acid slows carbohydrate absorption and influences glucose metabolism, which is why standardized green coffee bean extract has been studied for blood sugar, blood pressure, and modest weight management, with small trials showing measurable but moderate effects. Because the extract still contains some caffeine, it can also give a mild energy lift. Standardize to 45 to 50 percent chlorogenic acid, around 400 mg before meals. Treat it as a gentle metabolic helper alongside diet rather than a standalone weight solution.

WHY IT MATTERS

Unroasted coffee rich in chlorogenic acid, studied for modest effects on blood sugar and weight.

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Common questions

What is Green Coffee Bean Extract?
Green, unroasted, coffee beans are rich in chlorogenic acid, a polyphenol largely destroyed by roasting. Chlorogenic acid slows carbohydrate absorption and influences glucose metabolism, which is why standardized green coffee bean extract has been studied for blood sugar, blood pressure, and modest weight management, with small trials showing measurable but moderate effects. Because the extract still contains some caffeine, it can also give a mild energy lift. Standardize to 45 to 50 percent chlorogenic acid, around 400 mg before meals. Treat it as a gentle metabolic helper alongside diet rather than a standalone weight solution.
What is Green Coffee Bean Extract used for?
Blood sugar · weight. Unroasted coffee rich in chlorogenic acid, studied for modest effects on blood sugar and weight.
What is the standard dose of Green Coffee Bean Extract?
400 mg (50% chlorogenic acid), typically taken in the morning. Approximate cost is $14 per month.
How strong is the evidence for Green Coffee Bean Extract?
Moderate evidence for its primary uses. See the full study list on the research page.

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