Vitamin C is a water-soluble essential vitamin that can be found in fruits and vegetables, especially citrus. Humans are unable to synthesize vitamin C from their bodies, so it must be acquired through dietary intake. Vitamin C is important for immune system function and is a powerful antioxidant. It also acts as a cofactor for collagen synthesis.[1]
What is vitamin C?
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•Last Updated: May 16, 2025
Vitamin C is a water-soluble essential vitamin found in fruits and vegetables, particularly citrus, that humans must obtain through diet. It plays a crucial role in immune function, acts as a powerful antioxidant, and is necessary for collagen synthesis.