Get Your Personalized Supplement StackSupplement Stack Quiz

Greenburn Decaffeinated Green Coffee Bean Extract

Also known as: Coffea canephora, Green coffee bean extract, Green coffee extract, Coffea arabica

Overview

Green coffee bean extract is derived from unroasted coffee beans and is rich in chlorogenic acids (CGA), particularly 5-caffeoylquinic acid. It is primarily used as a dietary supplement for weight management and to enhance metabolic health. With a low caffeine content, it provides antioxidant properties and supports improved lipid profiles. The extract has gained popularity due to its potential benefits in health, primarily within the context of weight loss programs. While the research surrounding green coffee bean extract is moderate in maturity, there are numerous clinical trials and systematic reviews that examine its effectiveness, although some studies face methodological challenges that can affect the strength of evidence.

Benefits

Green coffee bean extract demonstrates several evidence-based benefits. Notably, it has been shown to aid weight management; studies indicated significant reductions in body weight and body mass index (BMI) when combined with an energy-restricted diet. Additionally, it contributes to lipid profile improvement, evidenced by reductions in total cholesterol and LDL-C levels. Another notable effect is its potential to improve metabolic syndrome factors, including fasting blood glucose and insulin resistance, particularly in obese individuals. Meta-analyses and randomized controlled trials underline these claims, although effect sizes can vary based on study characteristics and demographics involved.

How it works

The primary mechanism of action for green coffee bean extract hinges on its chlorogenic acids, which may inhibit glucose absorption in the gut and enhance fat metabolism. By modulating these processes, it can influence lipid metabolism and glucose regulation, interacting with key metabolic enzymes that govern these pathways. The bioavailability of chlorogenic acids, although variable, plays a critical role in determining their effectiveness post-consumption.

Side effects

Green coffee bean extract is generally regarded as safe with a relatively benign side effect profile. However, common issues such as gastrointestinal upset—including diarrhea and nausea—affect over 5% of users. Uncommon adverse effects may include headaches and dizziness, occurring in 1-5% of the population, while rare allergic reactions happen in less than 1%. Individuals on medications that influence blood sugar or blood pressure should use caution, and the extract is not recommended for pregnant or breastfeeding women due to limited data on its safety in these populations. Individuals with pre-existing conditions like diabetes or hypertension are also advised to exercise caution due to potential interactions with their treatment regimens.

Dosage

The typical effective dose for green coffee bean extract ranges from 200 to 400 mg daily, with 400 mg often being used specifically for weight management. While the exact maximum safe dose is not well-defined, higher amounts above 400 mg are less frequently studied. It's advisable to administer the supplement before meals to maximize absorption. Absorption can be influenced by dietary factors, thus making it crucial to consider meal timing when taking this supplement. No specific cofactors are identified as necessary for its action.

FAQs

Should I use green coffee bean extract with a diet?

Yes, for optimal results, it should be used in conjunction with a balanced diet and healthy lifestyle.

Is green coffee bean extract safe?

Generally considered safe, but users should monitor for gastrointestinal side effects.

When is the best time to take it?

It’s best taken before meals to enhance absorption and effectiveness.

What results can I expect?

Weight loss and improved lipid profiles are typically observed after several weeks of use.

Can it replace a healthy diet?

No, it’s not a substitute for a healthy diet and exercise; lifestyle changes are still essential.

Research Sources

https://jppres.com/jppres/pdf/vol11/jppres23.1593_11.3.414.pdf – A systematic review and meta-analysis illustrated that supplementation with green coffee bean extract significantly reduced total cholesterol and LDL-C levels across various studies, although study heterogeneity was noted.
https://pubmed.ncbi.nlm.nih.gov/31748178/ – A randomized controlled trial involving 64 obese women highlighted that green coffee bean extract combined with energy restrictions resulted in statistically significant reductions in body weight and improvement in lipid profiles over an 8-week period.
https://apjcn.nhri.org.tw/server/APJCN/26/6/1048.pdf – An animal study found that green coffee bean extract in combination with decaffeinated green tea improved metabolic syndrome risk factors in rats, noting the necessity for human validation of these effects.