In recent times, several active components have been isolated from the berries and the leaves of the plant of Blueberry, including flavonoids (anthocyanins), vitamins and pectin, anthocyanoside found in berries, and quercetin, catechins, tannins, iridoids, and acids, which are found in the leaves. Bilberry also has excellent antioxidant properties due to high levels of anthocyanosides.
The regular use of bilberry helps to promote healthy vision and support the tiny capillaries of blood carrying oxygen to the eyes. A double-blind, placebo-controlled trial of extract of bilberry in 14 people showed significant improvements in the diabetic retinopathy in the treated group. (Bone k. concentrate-The vision herb.) MediHerb Prof Rev. 1997; 59: 1-4). Chromium Picolinate is a mineral supplement and a food highly absorbable form of chromium an essential nutrient for sugar metabolism. The daily dietary intake for chromium is 50 to 200 micrograms, but the majority of diets containing less than 60% of this amount! The FDA has agreed that chrome can help in reducing the risk of possibly of type 2 diabetes and insulin resistance.
In a controlled study, the groups were administered a placebo or 100 or 500 micrograms of chromium picolinate two times per day for four months. Those groups receiving 100 micrograms twice a day did not show any significant improvement, while in the group that received 500 micrograms twice per day was found highly significant improvements in glucose/insulin system. (Anderson RA. Nutritional factors influencing the glucose/insulin system: chromium.