Coffea Robusta
Also known as: Robusta coffee, Coffea robusta, Coffea canephora, *Coffea canephora*
Overview
*Coffea canephora*, commonly known as Robusta coffee, is a species of coffee bean recognized for its higher caffeine content compared to the more popular Arabica beans. Green coffee bean extract (GCBE), derived from unroasted beans, is rich in chlorogenic acid (CGA), a polyphenol associated with various health benefits. GCBE is primarily marketed as a dietary supplement aimed at aiding weight loss and improving metabolic health, benefiting from CGA's influence on glucose and fat metabolism. The research around GCBE shows moderate maturity with several clinical trials supporting its efficacy, although many studies vary in quality and sample size. Overall, GCBE presents as a potential adjunct for weight management, particularly in overweight and obese populations where moderate evidence suggests beneficial effects on body weight and BMI.
Benefits
Green coffee bean extract has been linked to various health benefits, most notably its role in modest weight loss. Several studies highlight reductions in body weight (WMD: -1.23 kg, 95% CI: -1.64 to -0.82 kg, P < 0.001) and BMI (WMD: -0.48 kg/m2, 95% CI: -0.78 to -0.18 kg/m2, P = 0.001) over placebo. Evidence suggests these benefits may be particularly relevant for overweight or obese individuals. Some secondary effects include improvements in blood pressure and glucose metabolism, although data in these areas are less robust. Overall, while evidence exists for weight management, further research is needed to validate efficacy and understand the variability in study outcomes.
How it works
CGA, the active compound in GCBE, is believed to enhance fat metabolism and inhibit glucose absorption through its action on metabolic pathways. It may influence liver function and help regulate glucose homeostasis. Known molecular targets include various enzymes involved in glucose and lipid metabolism, suggesting a multifaceted interaction with the body's metabolic systems. The bioavailability of CGA in humans indicates that while it is effectively absorbed, individual absorption rates may vary based on factors such as dietary intake.
Side effects
Coffea canephora is generally recognized as safe for consumption; however, some potential side effects might occur. While common side effects have not been consistently reported in clinical studies, there can be gastrointestinal upset or, in rare cases, allergic reactions. Additionally, there may be concerns regarding interactions with diabetes medications or those affecting blood pressure. Although no strict contraindications exist, it is advisable for pregnant or breastfeeding women to consult with healthcare professionals before starting supplementation. The overall safety profile remains positive, yet individual tolerance varies and should be monitored.
Dosage
The typical minimum effective dose for chlorogenic acid is around 200 mg per day. However, most research suggests a range of 200-700 mg per day, with the upper limit not clearly defined but advisable not to exceed without further evidence. Timing considerations suggest that GCBE is best taken with meals to improve absorption, commonly available in capsule or tablet form. Factors influencing absorption may include dietary content, thus aligning intake with meals could enhance efficacy. There are no specific co-factors required for optimal absorption.
FAQs
How should I use GCBE for weight loss?
GCBE should be integrated into a healthy diet and lifestyle for optimal results. Consistent use is recommended.
Is GCBE safe to consume?
Generally considered safe, but individual tolerance may vary. Monitoring for side effects is advised.
When is the best time to take GCBE?
It’s best taken consistently, ideally with meals to maximize absorption.
What results can I expect from using GCBE?
Users may experience modest weight loss over several weeks of consistent use.
Can GCBE replace a healthy lifestyle?
No, GCBE is not a substitute but should complement a balanced diet and regular exercise.
Research Sources
- https://www.reliasmedia.com/articles/63409-weighing-in-green-coffee-bean-extract-a-potential-safe-and-effective-weight-loss-supplement – This article reviews the potential benefits of green coffee bean extract for weight loss, noting significant reductions in weight in various studies but highlighting methodological challenges.
- https://pubmed.ncbi.nlm.nih.gov/32507437/ – A meta-analysis examining the effectiveness of GCBE related to weight loss reported statistically significant reductions in body weight and BMI, while addressing study limitations.
- https://www.todaysdietitian.com/newarchives/010614p58.shtml – A systematic review detailing the effects of green coffee bean extract on weight management, noting the variability in clinical responses and the need for further large-scale studies.
- https://libguides.usc.edu/healthsciences/systematicreviews/databases – This resource provides insights into the methodology of systematic reviews including those related to dietary supplements like GCBE.
- https://onlinelibrary.wiley.com/doi/10.1155/2011/382852 – This systematic review details results from a collection of randomized controlled trials showing significant weight loss associated with GCBE, while pointing out methodological limitations across studies.
Supplements Containing Coffea Robusta
AB Igniter
Top Secret Nutrition Lean
Green Coffee Bean Extract Plus KonaRed Coffee Berry
Irwin Naturals
Slim
Plexus
Score! XXL
Force Factor
Concept X
GNC Beyond Raw
Multivitamin + Focus
GNC
Beast Mode Pink Lemonade Flavor
Beast
Amphetalean
Beast
Vita-Brew
Rapid Fire
Green Coffee Seeds Powder
Bixa Botanical
Iso Lean 1 Stimfree
Advanced Nutrition Systems
TEST X180® SURGE
FORCE FACTOR®