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Vitamin D plays crucial roles across multiple systems in the body. Deficiency of this vitamin can negatively affect these systems, leading to altered physical performance. (source)
Vitamin D insufficiency can negatively impact performance by impairing muscle function, reducing strength, and increasing the risk of injuries, ultimately hindering physical ability. Sufficient vitamin D levels support optimal muscle function, enhance recovery, and promote bone health, all of which contribute to improved physical performance. Additionally, adequate vitamin D can boost immune function, further aiding in maintaining consistent training and competition schedules.
Supplement with Vitamin D: Supplementation with vitamin D has been shown to increase levels of vitamin D, which improves vitamin D status in the body. (source) Recommendation: Supplement with up to 2,000 IU of vitamin D daily.
Supplement with Vitamin K: Supplementation with vitamin K in combination with vitamin D has been shown to improve markers of vitamin D status. (source, source) Recommendation: Supplement with at least 35 mg of vitamin K daily.
