**5.1 Sources**

Sources of flavonoids are fresh capers, elderberry juice, dried parsley, sorrel, red onions, rocket lettuce, fresh cranberries, goji berries, cooked asparagus, blackcurrants, dried oregano, grapefruit, lemons, orange juice, limes, oranges, grapefruit juice, artichokes, green tea, black tea, dried cocoa, dark chocolate, blackberries, cooked broad beans, pecan nuts, red table wine, apples, peaches, dried parsley, aronia, green pepper, bilberries, chickpeas, black currants, American bilberries, red cabbage, red currants, raspberries, and strawberries.

#### **5.2 Function**

There are several health benefits of flavonoids, including antiallergic, antioxidant activities, antiviral [42], antitoxic, antifungal [43], antibacterial [44] and anti-inflammatory [45]. Recent researches identified the many defensive roles of flavonoids, these are eye diseases [46], heart diseases [47], hemorrhoids [48], diabetes [49], neurodegenerative diseases, such as Alzheimer's or Parkinson's [50], gout [51] and periodontal disease [52]. Flavonoids are also used for the prevention and treatment of different types of cancer, such as prostate [53], ovarian [54], pancreatic, colon, breast [55], leukemia, lung [56], esophageal [57], hepatocellular carcinoma [58], and renal cell carcinoma [59].
