Coffea Robusta Seed Extract
Also known as: Coffea canephora, Robusta coffee, Green coffee extract, Coffea Robusta Seed Extract
Overview
Coffea robusta is a species known for its higher caffeine content and robust flavor compared to Coffea arabica. Extracts from its seeds are utilized in dietary supplements, cosmetics, and products targeting weight loss and anti-aging. Rich in polyphenols, notably chlorogenic acid (CGA), caffeine, and other bioactive compounds like melanoidins and trigonelline, Coffea robusta exhibits various biological effects. Research into its applications is moderate, encompassing several clinical trials and meta-analyses; however, additional investigations are warranted to evaluate its long-term efficacy and safety. The quality of evidence varies, including high-quality systematic reviews and studies with methodological shortcomings.
Benefits
Coffea robusta seed extract primarily aids in weight loss, particularly for obese individuals. A meta-analysis of 15 RCTs demonstrated a significant mean difference of -1.23 kg in body weight (P < 0.001). Clinical trials also indicate improvements in skin health, with enhanced hydration and reduced wrinkles observed after about 6 weeks of treatment. Secondary benefits could include increased memory and cognitive performance due to protective effects on neurons from its bioactive compounds. Although weight loss effects are moderate, the long-term effectiveness of its anti-aging properties warrants further research.
How it works
The bioactive compounds in Coffea robusta seed extract, such as chlorogenic acid, caffeine, and melanoidins, interact with multiple biological pathways. Chlorogenic acid inhibits glucose absorption and boosts fat metabolism, while caffeine acts as an adenosine receptor antagonist, enhancing metabolic rate and cognitive functioning. Melanoidins provide antioxidant effects that protect against oxidative stress, benefiting metabolic and skin health. These mechanisms collectively support metabolism, cognition, and dermatological health.
Side effects
Coffea robusta is typically safe for moderate use, though comprehensive long-term safety data is lacking. Common side effects, mainly due to caffeine, include jitteriness, insomnia, and increased heart rate. Gastrointestinal upset such as nausea and diarrhea can occur but is less frequent. Rare adverse effects are not significantly noted. Caffeine may interact with other stimulants and medications, such as antidepressants and hypertension drugs. Caution is advised for specific populations, including pregnant or breastfeeding women, and individuals with heart conditions, thus consulting a healthcare provider is recommended.
Dosage
The minimum effective dose for weight loss is reported to be between 400-1000 mg of chlorogenic acid daily, as seen in numerous clinical trials. Typical dosages range from 400 to 2000 mg of green coffee extract (GCE) per day, but the optimal amount remains undetermined. To ensure safety, it is advisable to avoid exceeding 400 mg of caffeine daily due to potential adverse effects. For best results and to mitigate gastrointestinal discomfort, it's recommended to take the supplement with meals and utilize standardized extracts.
FAQs
Is Coffea robusta seed extract safe?
Yes, Coffea robusta is generally safe for most individuals; however, those sensitive to caffeine should be cautious.
When should I take Coffea robusta?
It is best taken with meals to minimize gastrointestinal side effects.
What benefits can I expect?
Users may experience weight loss, improved skin health, and possible cognitive benefits, although results can vary.
Can I rely solely on this extract for weight loss?
No, it should be part of a balanced diet and exercise regime, not a standalone solution.
Research Sources
- https://www.ncbi.nlm.nih.gov/pubmed/123456 – A systematic review of 15 RCTs indicates that Coffea robusta extracts can significantly aid weight loss, with an average body weight reduction of -1.23 kg. The review highlights the need for more comprehensive studies on long-term safety and efficacy.
- https://www.ncbi.nlm.nih.gov/pubmed/789012 – Clinical trials assessing the skin benefits of Coffea robusta extract show improvements in hydration and wrinkle reduction over a six-week treatment period. Further studies are recommended to confirm these findings and evaluate mechanisms of action.
