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Weight/Heart/Inflammation

Green coffee bean extract

Concentrated source of chlorogenic acids studied for blood pressure and weight management in adults with metabolic risk.

Green coffee bean extract
50
score
C
evidence
Caution
risk

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Quick Take

Weak evidence for modest weight and blood pressure effects; safe for most but not a metabolic fix.

Green coffee bean extract is derived from unroasted coffee beans and is standardized for chlorogenic acids, a group of polyphenols mostly lost during roasting. It is thought to inhibit intestinal glucose absorption and modulate hepatic glucose metabolism. Human trials suggest modest reductions in blood pressure and small, inconsistent effects on body weight and fasting glucose. It may benefit adults with prehypertension or metabolic syndrome, though effects are generally smaller than diet and exercise changes.

Potential benefits

01
Lowers blood pressure modestly
02
May support modest weight loss
03
May improve glucose control
04
May lower inflammatory markers
05
May improve lipid profile

Protocol

Amount
400-800 mg
Frequency
Once or twice daily before meals
When
Before meals to leverage alpha-glucosidase inhibition and reduce glucose spikes.

Onset Time

4-8 weeks for blood pressure; 8-12 weeks for weight or glucose changes.

Who Should Consider

Adults with mild hypertension
People seeking modest metabolic support
Pre-diabetics monitoring glucose
Those with low dietary polyphenol intake

How It Works

Chlorogenic acids inhibit alpha-glucosidase and glucose-6-phosphatase, slowing carbohydrate absorption and hepatic glucose release. They also improve nitric oxide bioavailability and reduce vascular tone, contributing to blood pressure reductions. The high antioxidant content may reduce low-grade inflammation, though clinical translation to human outcomes remains uncertain.

Updated 5/19/2026

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