USANA Nutritionals

What is Biotin?

Biotin (also known as vitamin H or vitamin B7) is a water-soluble sulfur-containing member of the B vitamin family. Biotin plays an essential role in maintaining metabolic homeostasis by acting as a cofactor with enzymes involved in carboxylation reactions. These enzymes catalyze key reactions in gluconeogenesis, fatty acid metabolism, and amino acid catabolism.
Biotin is found in numerous foods and is also synthesized by intestinal bacteria. This makes deficiencies rare and generally seen only after prolonged antibiotic therapies that deplete the beneficial intestinal bacteria, or following excessive consumption of raw egg whites.

There have been no reports of toxic reactions related to biotin, even in people taking doses up to 200 mg orally and 20 mg intravenously.
 
Foods relatively rich in biotin include egg yolk, liver, and some vegetables.

What are Tocotrienols?

Tocotrienols are structurally and functionally similar to vitamin E and other tocopherols. Like tocopherols, several forms of tocotrienols are known (alpha-, beta-, delta-, and gamma-tocotrienols). Tocotrienols have much less vitamin activity than tocopherols, but are generally better antioxidants in-vitro. For example, alpha-tocotrienol is 6.5-60 times more effective than alpha-tocopherol as an antioxidant. Due to their excellent function in cardiovascular health, tocotrienols serve as effective supplements in over-the-counter (OTC) health products.
Similar to vitamin E, tocotrienols also protect against lipid peroxidation (the damaging of fats by oxidation).

The primary sources of tocotrienols in the diet are vegetable oils, including palm and rice bran oil.

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