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Size: 90 Capsules

Price: $20.95

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Vitamin C is important in the formation of collagen, cartilage, bone, and teeth, and the hormone epinephrine (also called adrenaline).

It also protects other vitamins from inactivation, and participates in immune defenses. It is claimed by some to be protective against colds, viruses, and certain types of cancer when taken in large doses; research on these claims is not conclusive.

In people with mild deficiencies, vitamin C supplementation improves physical performance.

Not only is Vitamin C a potent antioxidant (the importance of antioxidants for athletes is something that will become more and more evident as future research unfolds), it also may have "growth-factor-like properties" for collagen synthesis (this is important for your tendons and ligaments).

And, other studies offer evidence which suggests Vitamin C may help protect muscles from excessive damage and may help "contractile tension" (strength).

A deficiency of vitamin C causes scurvy, a disease characterized by degeneration of skin, teeth, blood vessels, muscles, easy bruising and bleeding, and poor healing.

It has been claimed that supplemental vitamin C can reduce severity and recovery time associated with athletic injuries.

Some research suggests Vitamin C may also help improve the overall testosterone-to-cortisol ratio (which is a very important hormonal indicator of your body's environment for muscle growth).

As far as dosages, experts recommend anywhere from 400 mg a day to 10 grams a day!

Vitamin C, RDA: 60 mg (male), 60 mg (female)