Phenols, Flavors, and the Mediterranean Diet

Area of Science:

• Food Science
• Nutritional Science
• Phytochemistry

Background:

• Phenolics (phenols) are plant secondary metabolites with antioxidant properties.
• Dietary intake of phenolics varies globally, with coffee, tea, wine, fruits, and vegetables being common sources.
• Spices and culinary herbs are exceptionally rich in polyphenols, despite small consumption amounts.

Purpose of the Study:

• To summarize global dietary intake of polyphenols across various dietary patterns.
• To review the contribution of natural phenolic compounds to food and beverage flavor.
• To explore the role of phenolics in the Mediterranean Diet.

Main Methods:

• Literature review of dietary intake studies on polyphenols.
• Analysis of research on phenolic compounds' impact on food sensory properties (flavor, color, taste, astringency).
• Examination of phenolic content in foods relevant to the Mediterranean Diet.

Main Results:

• Spices and herbs are significant, often underestimated, sources of dietary polyphenols.
• Phenolic compounds contribute to bitter taste and astringency but also influence food color and aroma.
• Understanding sensory impacts can guide strategies to increase consumption of phenolic-rich foods.

Conclusions:

• Phenolic compounds play a dual role in diet: providing health benefits and influencing food sensory attributes.
• Dietary patterns, like the Mediterranean Diet, rich in diverse phenolic sources, are associated with health.
• Further research into sensory impacts can promote healthier eating habits and increase phytonutrient intake.