Green Coffee Bean Extract
Also known as: GCE, Coffea canephora
Effective Dosage
200-400 mg daily
✓ What the Science Says
Green coffee bean extract is rich in chlorogenic acids, which are believed to contribute to weight loss by reducing the absorption of carbohydrates from the digestive tract and enhancing fat metabolism. Several systematic reviews and clinical trials support its efficacy in promoting weight loss when combined with a healthy diet and exercise.
✗ What It Doesn't Do
Despite claims, green coffee bean extract is not a magic weight loss solution and does not replace the need for a balanced diet and exercise. It also does not significantly boost metabolism or provide energy like caffeine does, as the caffeine content in the extract is lower than in roasted coffee.
Evidence-Based Benefits
Green coffee bean extract is rich in chlorogenic acids, which are believed to contribute to weight loss by reducing the absorption of carbohydrates from the digestive tract and enhancing fat metabolism. Several systematic reviews and clinical trials support its efficacy in promoting weight loss when combined with a healthy diet and exercise.
Strong EvidenceEffective at: 200-400 mg daily
Source: auto-research
Absorption & Bioavailability
Moderate; chlorogenic acids are absorbed but may be affected by food intake.
Red Flags to Watch For
- 🚩 Beware of products claiming rapid weight loss without diet or exercise.
- 🚩 Watch for high caffeine content in some formulations, which can lead to side effects like jitteriness.
Products Containing Green Coffee Bean Extract
See how Green Coffee Bean Extract is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-03-07