# TruNature (Resveratrol)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/trunature
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** trans-resveratrol, 3,5,4'-trihydroxystilbene, Japanese knotweed extract, grape skin extract, Polygonum cuspidatum extract, stilbenoid compound, phytoalexin, red wine extract, Vitis vinifera extract, hu zhang extract

## Overview

Resveratrol is a polyphenolic stilbenoid found in grapes, berries, and red wine that activates the [longevity](/ingredients/condition/longevity)-associated sirtuin SIRT1 deacetylase enzyme. Its primary mechanisms include AMPK pathway activation, inhibition of NF-κB [inflammatory](/ingredients/condition/inflammation) signaling, and modulation of [oxidative stress](/ingredients/condition/antioxidant) via Nrf2 upregulation.

## Health Benefits

• Improves [endothelial function](/ingredients/condition/heart-health) - Meta-analysis of 17 studies showed increased flow-mediated dilation by 1.43% (Strong evidence)
• Reduces [inflammation](/ingredients/condition/inflammation) markers - Multiple RCTs demonstrated reductions in TNF-alpha, hs-CRP, and ICAM-1 levels (Strong evidence)
• Supports type 2 diabetes management - RCTs with 614+ participants showed improvements in fasting glucose, HbA1c, and insulin levels (Moderate evidence)
• Enhances lipid profiles - Clinical trials reported reduced total cholesterol and triglycerides at 100-500mg daily doses (Moderate evidence)
• Provides [antioxidant](/ingredients/condition/antioxidant) support - Studies showed increased antioxidant markers including TAS, PTX3, and PON1 (Moderate evidence)

## Mechanism of Action

Resveratrol binds and activates SIRT1, a NAD+-dependent deacetylase that regulates gene expression linked to metabolic homeostasis, inflammation, and [cellular senescence](/ingredients/condition/longevity). It simultaneously activates AMP-activated protein kinase (AMPK), improving [insulin sensitivity](/ingredients/condition/weight-management) and [mitochondrial biogenesis](/ingredients/condition/energy) via PGC-1α upregulation. Additionally, resveratrol inhibits NF-κB nuclear translocation, suppressing downstream [pro-inflammatory cytokine](/ingredients/condition/inflammation)s including TNF-alpha, IL-6, and COX-2-derived prostaglandins.

## Clinical Summary

A meta-analysis of 17 randomized controlled trials demonstrated that resveratrol supplementation increased flow-mediated dilation by 1.43%, indicating measurable improvement in [endothelial function](/ingredients/condition/heart-health). Multiple RCTs have documented significant reductions in TNF-alpha, hs-CRP, and ICAM-1, supporting an [anti-inflammatory](/ingredients/condition/inflammation) effect at doses typically ranging from 150 to 1000 mg per day. Evidence for type 2 diabetes management is encouraging, with several RCTs showing reduced fasting glucose and improved [insulin sensitivity](/ingredients/condition/weight-management), though study populations have been modest in size. Overall, cardiovascular and metabolic evidence is rated strong, while [anti-aging](/ingredients/condition/longevity) and [neuroprotective](/ingredients/condition/cognitive) claims require larger long-term human trials.

## Nutritional Profile

Primary bioactive compound: trans-Resveratrol (3,5,4'-trihydroxystilbene), typically 250 mg per softgel in TruNature formulations. Often paired with additional polyphenolic support such as red wine extract (providing additional polyphenols including quercetin, catechins, and anthocyanins) and grape seed extract (source of oligomeric proanthocyanidins/OPCs, typically 50–100 mg per serving). Negligible macronutrient content (essentially zero protein, carbohydrate, and fat beyond trace amounts from the softgel carrier oil). No significant vitamins or minerals. The softgel delivery form uses a lipid-based carrier (often soybean or another vegetable oil) which may modestly enhance absorption of the lipophilic resveratrol. Bioavailability notes: Oral trans-resveratrol has low intrinsic bioavailability (~1–5% unchanged in plasma) due to rapid Phase II [metabolism](/ingredients/condition/weight-management) in the intestine and liver, producing sulfate and glucuronide conjugates (resveratrol-3-O-sulfate, resveratrol-3-O-glucuronide) which may retain partial biological activity. Peak plasma levels occur approximately 0.5–2.5 hours post-ingestion. Taking with a fat-containing meal may improve absorption. Despite low parent compound bioavailability, metabolites achieve substantially higher circulating concentrations and contribute to observed clinical effects. The typical TruNature product provides 250 mg trans-resveratrol per capsule with a recommended dose of 1 capsule daily, aligning with doses used in clinical trials (150–500 mg/day) that demonstrated [cardiovascular](/ingredients/condition/heart-health), [anti-inflammatory](/ingredients/condition/inflammation), and glycemic benefits.

## Dosage & Preparation

Clinical studies used oral doses ranging from 40-500 mg/day in capsule form. For type 2 diabetes: 500 mg once or twice daily for 45 days to 6 months. For dyslipidemia: 100 mg daily for 2 months. Acute IV use in stroke was 2.5 mg/kg. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Resveratrol is generally well tolerated at doses up to 1000 mg per day, with the most commonly reported side effects being gastrointestinal discomfort including nausea, diarrhea, and bloating at higher doses. Due to mild antiplatelet and anticoagulant properties, resveratrol may potentiate the effects of warfarin, clopidogrel, and aspirin, increasing bleeding risk and warranting caution in patients on blood thinners. Resveratrol inhibits CYP3A4 and CYP2C9 enzymes, which may elevate plasma concentrations of drugs metabolized by these pathways, including statins, calcium channel blockers, and certain immunosuppressants. Safety data in pregnancy and lactation is insufficient, and use is not recommended in these populations or in individuals with hormone-sensitive conditions given weak estrogenic activity.

## Scientific Research

A 2025 meta-analysis of 21 arms from 17 RCTs found resveratrol significantly improved [endothelial function](/ingredients/condition/heart-health) (FMD increase of 1.43%, p<0.001) and reduced ICAM-1 levels. Key RCTs include Chen 2016 (n=312 stroke patients), Movahed 2013 (n=66 T2D patients), and Simental-Mendia 2019 (n=71 dyslipidemic adults), though specific PMIDs were not provided in the research dossier.

## Historical & Cultural Context

Resveratrol from Japanese knotweed has been used in Traditional Chinese Medicine for centuries for [cardiovascular health](/ingredients/condition/heart-health) and [inflammation](/ingredients/condition/inflammation). Grape-derived forms connect to Mediterranean dietary traditions for heart health, though purified resveratrol supplements are a modern development.

## Synergistic Combinations

Quercetin, Curcumin, Green Tea Extract, [NAD+ precursor](/ingredients/condition/longevity)s, Omega-3 fatty acids

## Frequently Asked Questions

### How much resveratrol should I take per day?

Most clinical trials demonstrating cardiovascular and anti-inflammatory benefits have used doses between 150 mg and 1000 mg per day of trans-resveratrol, the biologically active isomer. A common starting dose is 250–500 mg daily, taken with a meal containing fat to improve absorption, as resveratrol is lipophilic and has low oral bioavailability of approximately 1% without formulation enhancement.

### Does resveratrol actually slow aging in humans?

Direct evidence of aging deceleration in humans remains limited; current data comes primarily from preclinical studies in yeast, worms, and mice where SIRT1 activation extended lifespan. In human trials, resveratrol activates SIRT1 and reduces biomarkers of cellular stress such as oxidative DNA damage and inflammatory cytokines, which are mechanistically linked to aging, but no large-scale human longevity trial has been completed to date.

### Can resveratrol lower blood sugar in type 2 diabetes?

Several RCTs have shown that resveratrol supplementation at doses of 500–1000 mg per day significantly reduces fasting blood glucose and improves HOMA-IR insulin resistance scores in type 2 diabetic patients. The mechanism involves AMPK activation in skeletal muscle and liver, which increases GLUT4 glucose transporter translocation and reduces hepatic gluconeogenesis, but it should be used as an adjunct to, not a replacement for, prescribed diabetes medications.

### Is resveratrol safe to take with blood pressure medications?

Resveratrol can produce modest reductions in systolic blood pressure through increased nitric oxide bioavailability and inhibition of angiotensin-converting enzyme activity, which may have additive effects with antihypertensive drugs such as ACE inhibitors, ARBs, or calcium channel blockers. Patients on antihypertensive therapy should consult a physician before starting resveratrol, as the combination could theoretically cause excessive blood pressure lowering, particularly at doses above 500 mg per day.

### What is the difference between resveratrol and pterostilbene?

Resveratrol and pterostilbene are both stilbenoid polyphenols that activate SIRT1 and AMPK, but pterostilbene has two methoxy groups replacing resveratrol's hydroxyl groups, significantly increasing its lipophilicity and oral bioavailability to approximately 80% compared to resveratrol's roughly 1%. Pterostilbene also has a longer plasma half-life and greater blood-brain barrier penetration, which may make it more effective for neuroprotective applications, though resveratrol has a substantially larger body of clinical research supporting its cardiovascular and metabolic benefits.

### What makes TruNature's resveratrol formulation different from other brands?

TruNature resveratrol is typically standardized for potency and purity, though specific formulation details vary by product line. The brand focuses on third-party testing and quality assurance to ensure consistent resveratrol content across batches. Comparing labels directly with competitors will show differences in additional ingredients, capsule type, and price-per-serving value.

### Is TruNature resveratrol better absorbed with food or on an empty stomach?

Resveratrol absorption is enhanced when taken with meals containing fat, as it is fat-soluble and requires dietary lipids for optimal bioavailability. Taking TruNature resveratrol with breakfast or lunch that includes healthy fats (olive oil, nuts, avocado) can improve its absorption compared to taking it on an empty stomach. Consistency with timing relative to meals is more important than the specific time of day.

### Can I take TruNature resveratrol if I'm on statins or other cholesterol medications?

Resveratrol is generally safe to combine with statins and may offer complementary cardiovascular benefits, though you should consult your healthcare provider for personalized advice. Both resveratrol and statins support endothelial function and reduce inflammation, but no significant drug interactions are documented in clinical literature. Always inform your doctor about all supplements to ensure there are no individual contraindications based on your specific health profile.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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