Vitamin A, Vitamin D and Vitamin E
Vitamin A
Carotene, a substance from plants that the body can convert into vitamin A, also acts as an antioxidant and immune system booster.
Vitamin D
Vitamin D strengthens the bones and teeth and also fosters normal muscle contraction and nerve function. It is also useful for promoting immunity and blood cell formation. In addition, Vitamin D supplements may slow or even reverse some cancers.
Numerous studies link vitamin D and influenza, as well as vitamin D and respiratory infections more generally. This vitamin up-regulates genetic expression of various endogenous antimicrobial peptides (AMP), which exhibit broad-spectrum microbicidal activity against bacteria, fungi, and viruses. Susceptibility to influenza is reduced with higher levels of sun exposure or vitamin D supplementation. Seasonal variation of vitamin D levels in humans can help explain the seasonality of flu epidemics
Vitamin E
Vitamin E is a powerful antioxidant that
works to protect cells in the body from damage caused
by free radicals. Vitamin E also protects vital nutrients like Vitamin A, the
B vitamins and Vitamin C from oxidation, and helps ensure
the efficient use of oxygen by the blood and muscles.
The d alpha tocopherol is the natural and most potent
form of Vitamin.
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