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.
Rye and other whole grains found in breads, rolls and cereals contain various levels of polyphenols. Soybeans top the list of beans, while other beans contain minimal to moderate amounts. Peanuts are also listed as a good source of this antioxidant. Several servings of whole grain should be eaten each day, with beans and nuts added several times a week.