Resveratrol (trans-)

Trans-resveratrol is a polyphenolic stilbene compound that activates sirtuin proteins and modulates inflammatory pathways. It provides cardiovascular protection through endothelial function improvement and offers potent antioxidant effects against cellular damage.

Origin & History

Resveratrol is a polyphenolic compound found in the skin of red grapes, berries, and peanuts. It is typically extracted through a process involving the fermentation of grape skins or chemical synthesis. The trans- form is the most biologically active and stable isomer.

Historical & Cultural Context

Resveratrol gained popularity in the 1990s after studies linked red wine consumption to heart health benefits, a phenomenon known as the 'French Paradox.' It has been used in traditional medicine for its purported health benefits.

Health Benefits

- Supports cardiovascular health by improving endothelial function, which enhances blood flow and reduces the risk of heart disease. - Acts as a potent antioxidant, neutralizing free radicals and protecting cells from oxidative damage. - Promotes anti-aging by activating sirtuins, proteins that regulate cellular health and longevity. - Enhances brain health by improving cerebral blood flow, potentially reducing the risk of cognitive decline. - Supports metabolic health by improving insulin sensitivity, which can help manage blood sugar levels. - Reduces inflammation by inhibiting inflammatory pathways, which can lower the risk of chronic diseases. - Boosts skin health by protecting against UV-induced damage, promoting a youthful appearance.

How It Works

Trans-resveratrol activates SIRT1 (sirtuin 1) proteins, which regulate cellular metabolism, DNA repair, and longevity pathways. It inhibits nuclear factor-kappa B (NF-κB), reducing inflammatory cytokine production, and activates AMP-activated protein kinase (AMPK) to improve glucose metabolism. The compound also modulates nitric oxide synthase activity, enhancing endothelial function and vascular health.

Scientific Research

Numerous RCTs and meta-analyses have demonstrated resveratrol's efficacy in improving cardiovascular health and reducing inflammation. In vitro studies further support its antioxidant properties.

Clinical Summary

Human studies using 100-500mg daily doses show modest improvements in endothelial function and blood flow markers in cardiovascular patients. A 12-week randomized trial with 119 participants demonstrated improved insulin sensitivity with 150mg trans-resveratrol daily. However, longevity and anti-aging benefits observed in animal studies have not been conclusively replicated in human trials. Most clinical evidence is from small studies with short durations, requiring larger long-term trials for definitive health claims.

Nutritional Profile

- Contains high levels of polyphenols. - Rich in antioxidants. - Low in calories and fats.

Preparation & Dosage

Typical dosages range from 150 to 500 mg per day. Available in capsule and powder form. Consult a healthcare provider before use.

Synergy & Pairings

Pterostilbene, Quercetin, Luteolin, Apigenin

Safety & Interactions

Trans-resveratrol is generally well-tolerated at doses up to 1000mg daily, with mild gastrointestinal upset being the most common side effect. It may enhance anticoagulant effects of warfarin and other blood thinners due to its antiplatelet activity. The compound can interact with cytochrome P450 enzymes, potentially affecting metabolism of certain medications. Pregnant and breastfeeding women should avoid supplementation due to insufficient safety data.