â¢ Lychee average yields range from 600 pounds per acre in an âoffâ year to 10,000 pounds per acre in a heavy-bearing year (economic average is 5,000 pounds per acre). With a pack-out of 70 percent and a price of $3 per pound, income from an acre of lychee averages approximately $10,000 (3).
Generally foods contain complex mixtures of polyphenols. According to a 2005 review on polyphenols: The most important food sources are commodities widely consumed in large quantities such as fruit and vegetables, green tea, black tea, red wine, coffee, chocolate, olives, and extra virgin olive oil.
What You Need to Know: Disease-Fighting Power of Polyphenols Polyphenols found in fruits and vegetables are potent antioxidants, particularly those in cocoa, green tea, chokeberry, and apples. Polyphenols also have beneficial effects on the endothelial lining of blood vessels by increasing the availability of nitric oxide, and by preventing the lipid oxidation underlying atherosclerosis. The typical Western diet lacks sufficient amounts and variety of plant polyphenols to be of optimal benefit.