How does vitamin D affect athletic performance?

Vitamin D receptors are present in muscle tissue. Adequate vitamin D (serum 25(OH)D >40 ng/mL) is associated with improved muscle strength, power, reaction time, and reduced injury and stress fracture risk.

What 25(OH)D level is optimal for athletes?

Sports medicine consensus suggests 40-60 ng/mL as the athletic optimal range, higher than the general population recommendation of >20 ng/mL, due to heightened musculoskeletal demands.

How much supplementation is typically needed?

Deficient athletes (<20 ng/mL) may need 4,000-6,000 IU/day to restore levels. Maintenance doses of 1,000-2,000 IU/day are sufficient for indoor athletes or those at northern latitudes.

Vitamin D Athletic Dose Calculator

Calculate vitamin D supplementation needs for athletes based on sun exposure, skin tone, latitude, and current serum 25(OH)D levels to optimize performance and injury prevention.

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Frequently Asked Questions

How does vitamin D affect athletic performance?

What 25(OH)D level is optimal for athletes?

How much supplementation is typically needed?