1. Polyphenols presentation

1.1 The benefits of polyphenols

It's well recognized that regular consumption of green vegetables, fruit, fiber and fish, combined with daily exercise, has a protective effect against the onset of pathologies and is therefore a factor in longevity. Conversely, a high-calorie diet (rich in refined sugars, animal fats and meat), combined with smoking, excessive alcohol consumption and a sedentary lifestyle, will increase the risk of vascular disease, diabetes, obesity, hypertension and cancer. In fact, plant-based foods produce the microconstituents found in most fruits and vegetables (table 1 ). For example, grapes, tea/coffee, soya, peanuts, cocoa, apples, onions, cabbage, broccoli, tomatoes, almonds, olive oil, pomegranates,...