Myricetin

Myricetin is a flavonol polyphenol that acts as a potent antioxidant by donating electrons to neutralize free radicals and chelating metal ions. It modulates multiple cellular pathways including NF-κB, MAPK, and Nrf2 to provide anti-inflammatory and neuroprotective effects.

Origin & History

Myricetin is a naturally occurring flavonoid found in various fruits, vegetables, and herbs such as berries, onions, and tea. It is typically extracted through solvent extraction methods from plant sources.

Historical & Cultural Context

Traditionally used in herbal medicine for its health-promoting properties, myricetin has been a component of diets rich in fruits and vegetables historically associated with longevity.

Health Benefits

- Acts as a potent antioxidant, neutralizing free radicals and reducing oxidative stress by 50%. - Reduces inflammation by inhibiting pro-inflammatory pathways, alleviating chronic pain. - Supports brain health by enhancing synaptic plasticity, improving cognitive function. - Promotes cardiovascular health by reducing LDL cholesterol levels, supporting heart function. - Enhances liver health by promoting detoxification processes, reducing toxin accumulation. - Supports skin health by protecting against UV-induced damage, maintaining youthful appearance. - Aids in cancer prevention by inducing apoptosis in cancer cells, reducing tumor growth.

How It Works

Myricetin exerts its effects by inhibiting the NF-κB signaling pathway, reducing production of pro-inflammatory cytokines like TNF-α and IL-6. It activates the Nrf2 transcription factor, upregulating antioxidant enzymes including glutathione peroxidase and superoxide dismutase. The compound also modulates MAPK pathways and inhibits phosphodiesterase enzymes, affecting cyclic nucleotide signaling.

Scientific Research

Several in vitro and animal studies have demonstrated myricetin's antioxidant and anti-inflammatory properties. Human studies are limited but promising in cardiovascular and neuroprotective effects.

Clinical Summary

Limited human studies exist for myricetin, with most research conducted in cell culture and animal models. Preclinical studies show significant antioxidant activity with 50% reduction in oxidative stress markers and improved cognitive function in rodent models. Small human pilot studies suggest cardiovascular benefits, but larger randomized controlled trials are needed. Current evidence is promising but preliminary, requiring more robust clinical validation.

Nutritional Profile

- Rich in flavonoids, particularly myricetin. - Contains phenolic compounds that contribute to antioxidant activity. - Low in calories and free from fats.

Preparation & Dosage

Typical dosage ranges from 100-500 mg per day. Consult a healthcare provider before use.

Synergy & Pairings

Quercetin, Resveratrol, Vitamin C

Safety & Interactions

Myricetin is generally well-tolerated with few reported adverse effects at typical dietary intake levels. It may interact with anticoagulant medications due to its potential blood-thinning properties. High doses could theoretically interfere with iron absorption due to its metal-chelating properties. Pregnancy and breastfeeding safety has not been established, so supplemental doses should be avoided during these periods.