Synopsis

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

Mineral ascorbate, a buffered form of vitamin C (ascorbic acid) combined with minerals such as sodium, calcium, or magnesium, is sometimes used as a dietary supplement by athletes. The rationale for its use in athletic and exercise contexts is primarily based on vitamin C's role as an antioxidant, its involvement in collagen synthesis (important for connective tissue and joint health), and its potential to support immune function, especially during periods of intense physical stress.

Scientific studies have produced mixed results regarding the effectiveness of vitamin C supplementation, including mineral ascorbates, in improving athletic performance or aiding exercise recovery. Some research suggests that high-dose vitamin C may reduce exercise-induced oxidative stress and potentially decrease the incidence of upper respiratory tract infections in athletes under heavy training loads. However, other studies indicate that routine antioxidant supplementation can blunt some of the beneficial adaptations to exercise, such as improved mitochondrial function and endogenous antioxidant defenses.

Overall, while there is a scientific basis for the use of vitamin C as an antioxidant and immune modulator, direct evidence supporting the use of mineral ascorbate specifically as an athletic or exercise aid is limited and not robust. The body of evidence rates as low to moderate, with benefits more associated with correcting deficiencies than enhancing performance in already well-nourished individuals.

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