Increasing Life Expectancy with Plant Polyphenols: Lessons from the Mediterranean and Japanese Diets

Area of Science:

• Nutritional Science
• Biochemistry
• Gerontology

Background:

• Plant polyphenols are bioactive compounds found in diets like Mediterranean and Japanese.
• These diets are linked to increased longevity and reduced chronic disease.
• Polyphenols exhibit anti-inflammatory, antioxidant, and hormetic effects.

Purpose of the Study:

• To review plant polyphenols' chemical descriptions and mechanisms of action.
• To explore their role in life extension and combating aging-related diseases.
• To compare polyphenol profiles in Mediterranean and Japanese diets.

Main Methods:

• Narrative review of scientific literature.
• Analysis of chemical structures and biological activities of polyphenols.
• Examination of preclinical and clinical studies on polyphenol supplementation and aging biomarkers.

Main Results:

• Specific polyphenols like resveratrol, hydroxytyrosol, epigallocatechin gallate, and soy isoflavones show benefits.
• These compounds impact metabolic, cardiovascular, and neurodegenerative health.
• Dietary patterns low in processed foods and certain oils enhance polyphenol efficacy.

Conclusions:

• Plant polyphenols offer a promising nutritional strategy for enhancing longevity and healthspan.
• Further research is needed on bioavailability, dosage, and formulation for optimal nutraceutical development.
• Polyphenols may modulate epigenetic modifications relevant to aging and health.