Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin C (ascorbic acid) has a scientific basis for use in supporting the treatment of bleeding, particularly in cases where the bleeding is related to capillary fragility or scurvy (severe vitamin C deficiency). Vitamin C is essential for the synthesis of collagen, a structural protein crucial for maintaining the integrity of blood vessels, skin, and connective tissues. In scurvy, weakened collagen leads to fragile capillaries and connective tissues, resulting in spontaneous bruising and bleeding, including external bleeding from gums, skin, and mucous membranes. Supplementation with vitamin C in these deficiency states rapidly restores tissue integrity and stops the bleeding. However, outside of vitamin C deficiency, evidence supporting the use of vitamin C as a treatment for external bleeding (such as wounds, cuts, or trauma in otherwise healthy individuals) is limited. There are no robust clinical trials demonstrating a significant hemostatic effect of vitamin C in the context of acute external bleeding in individuals with normal vitamin C levels. Some small studies and anecdotal reports suggest vitamin C may improve wound healing due to its role in collagen synthesis, but this is not equivalent to direct bleeding control. In summary, vitamin C is scientifically validated in treating bleeding caused by deficiency (scurvy), but evidence for its use in general external bleeding is weak, meriting a moderate-low evidence rating.

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