There is no natural food source. It is directly derived from the ginkgo tree. Magnesium - is a mineral that relaxes smooth muscles, which regulates the outflow of aqueous humor from the inner eye. Natural sources include most nuts, seeds, vegetables, seafood and soy products. Increasing intake of them either by foods or by supplements has been found to prevent and even improve macular degeneration in many cases.
Natural sources are green leafy vegetables including spinach, kale and collard greens.
Bilberry - strengthens the structural integrity of blood vessels throughout the body and promotes healthy circulation, particularly to the small capillaries that deliver oxygen and nutrients to the eyes. Bilberry also helps prevent free radical damage to the delicate structures within the eye. Natural sources are blueberries and huckleberries. Taurine - this amino acid is important for the regeneration of worn out tissues of the retina. It helps protect the eyes from ultraviolet radiation.