GCBest® (Green Coffee Bean Extract)

Coffea
Evidence Level
Limited
1 Clinical Trial
3 Documented Benefits
2/5 Evidence Score

GCBest® is a green (unroasted) coffee bean extract standardized for chlorogenic acid, the polyphenol largely lost during roasting. Green coffee extract is studied for supporting modest weight management and healthy metabolism.

Studied Dose Commonly 200 to 400 mg of green coffee extract per day.
Active Compound Green (unroasted) coffee bean extract standardized for chlorogenic acid.

Benefits

Weight management

A meta-analysis found chlorogenic acid from green coffee supported modest reductions in body weight.

Metabolic support

Chlorogenic acid is studied for supporting healthy blood-sugar handling and metabolism.

Antioxidant defense

Chlorogenic acid is a polyphenol antioxidant that helps counter oxidative stress.

Mechanism of action

1

Chlorogenic acid action

Chlorogenic acid is studied for slowing carbohydrate absorption and supporting glucose and fat metabolism.

2

Antioxidant action

The polyphenol scavenges free radicals and supports antioxidant defenses.

Clinical trials

1
Green Coffee Chlorogenic Acid and Weight — Meta-Analysis
PubMed

Systematic review and meta-analysis of chlorogenic acid in green coffee on body weight. (Kanchanasurakit et al. 2023, Systematic Reviews)

Adults across multiple trials.

Chlorogenic acid from green coffee supported modest reductions in body weight versus control.

Side effects and drug interactions

Common Potential side effects

GENERALLY WELL-TOLERATED.
Contains caffeine; can cause jitteriness or sleep trouble.
Take earlier in the day.

Important Drug interactions

Stimulant medications — caffeine content may add effects; use caution.
Diabetes medication — monitor blood sugar.
Tell your doctor if pregnant or breastfeeding.

Frequently asked questions about GCBest® (Green Coffee Bean Extract)

What is GCBest® (Green Coffee Bean Extract)?

GCBest® is a green (unroasted) coffee bean extract standardized for chlorogenic acid, the polyphenol largely lost during roasting. Green coffee extract is studied for supporting modest weight management and healthy metabolism.

What is the recommended dosage of GCBest® (Green Coffee Bean Extract)?

The clinically studied dose for GCBest® (Green Coffee Bean Extract) is Commonly 200 to 400 mg of green coffee extract per day.. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is GCBest® (Green Coffee Bean Extract) used for?

GCBest® (Green Coffee Bean Extract) is studied for weight management, metabolic support, antioxidant defense. A meta-analysis found chlorogenic acid from green coffee supported modest reductions in body weight.

Are there side effects from taking GCBest® (Green Coffee Bean Extract)?

Reported potential side effects may include: GENERALLY WELL-TOLERATED. Contains caffeine; can cause jitteriness or sleep trouble. Always consult a healthcare provider before starting any new supplement, especially if you have underlying conditions or take medications.

Is GCBest® (Green Coffee Bean Extract) safe to take?

Whether GCBest® (Green Coffee Bean Extract) is safe depends on the dose, your overall health, and any medications you take. At studied doses, reported side effects can include: GENERALLY WELL-TOLERATED. It may also interact with certain medications. GCBest® (Green Coffee Bean Extract) is not suitable for everyone — consult a healthcare provider before use if you are pregnant or breastfeeding, have a medical condition, or take prescription medications.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Kanchanasurakit S, Saokaew S, Phisalprapa P, et al. Chlorogenic acid in green bean coffee on body weight: a systematic review and meta-analysis of randomized controlled trials. Syst Rev. 2023;12(1):163..PubMedUsed to support: Meta-analysis supporting modest weight benefit of green coffee chlorogenic acid.