Performance & Recovery

The influence of winter vitamin D supplementation on muscle function and injury occurrence in elite ballet dancers: A controlled study

Journal of Science and Medicine in Sport

This study of elite ballet dancers found that supplementation with 2000 IU of vitamin D daily for 4 months improved strength and jump height and reduced risk of injury. Significant increases were noted for the intervention group for isometric strength (18.7%) and vertical jump (7.1%). The intervention group also sustained significantly less injuries than the controls during the study period.

Related Studies

Performance & Recovery

Mechanisms of vitamin D action in skeletal muscle

Nutrition Research Reviews

This review describes the molecular role of vitamin D in skeletal muscle tissue function and metabolism, specifically in relation to proliferation, differentiation and the protein synthesis processes. Substantial evidence suggests that vitamin D may have the potential to modulate protein synthesis, mitochondrial metabolism as well as energy production, which is likely to make an impact on muscle strength, function and performance.

Performance & Recovery

Mechanisms of vitamin D action in skeletal muscle

Nutrition Research Reviews

This review describes the molecular role of vitamin D in skeletal muscle tissue function and metabolism, specifically in relation to proliferation, differentiation and the protein synthesis processes. Substantial evidence suggests that vitamin D may have the potential to modulate protein synthesis, mitochondrial metabolism as well as energy production, which is likely to make an impact on muscle strength, function and performance.

Performance & Recovery

Sports Health Benefits of Vitamin D

Sports Health

This review article found a strong correlation between vitamin D sufficiency and optimal muscle function. They found that increasing levels of vitamin D reduced inflammation, pain, and myopathy while increasing muscle protein synthesis, ATP concentration, strength, jump height, jump velocity, jump power, exercise capacity, and physical performance.

Performance & Recovery

Sports Health Benefits of Vitamin D

Sports Health

This review article found a strong correlation between vitamin D sufficiency and optimal muscle function. They found that increasing levels of vitamin D reduced inflammation, pain, and myopathy while increasing muscle protein synthesis, ATP concentration, strength, jump height, jump velocity, jump power, exercise capacity, and physical performance.

Performance & Recovery

Vitamin D and Its Role on the Fatigue Mitigation: A Narrative Review

Nutrients

This review discusses how vitamin D impacts fatigue through biochemical factors connected to oxidative stress and inflammatory cytokines, neurotransmitters dopamine and serotonin, and control of voltage-gated calcium and chloride channels.

Performance & Recovery

Vitamin D and Its Role on the Fatigue Mitigation: A Narrative Review

Nutrients

This review discusses how vitamin D impacts fatigue through biochemical factors connected to oxidative stress and inflammatory cytokines, neurotransmitters dopamine and serotonin, and control of voltage-gated calcium and chloride channels.

Intertek logo

Solius is an FDA-cleared over-the-counter (OTC) UVB light panel intended to stimulate production of vitamin D in people 22 years and older.

Solius is clinically proven to stimulate the production of vitamin D. References to the benefits of sunlight, UVB light, and vitamin D are based upon published, peer-reviewed research. The Solius device is not intended to diagnose, treat, cure, or prevent disease, except for the indications for use described in the user manual for your applicable region. Solius does not provide specific medical advice to users. Users should seek advice from a qualified physician or healthcare provider. This website does not establish a doctor-patient relationship. For detailed product information please consult the User Manual prior to use. 

Solius® is a registered trademark of Solius Labs, Inc.
100 Ravine Lane NE, Suite 310, Bainbridge Island, WA 98110

© 2026 Solius Labs, Inc.

Intertek logo

Solius is an FDA-cleared over-the-counter (OTC) UVB light panel intended to stimulate production of vitamin D in people 22 years and older.

Solius is clinically proven to stimulate the production of vitamin D. References to the benefits of sunlight, UVB light, and vitamin D are based upon published, peer-reviewed research. The Solius device is not intended to diagnose, treat, cure, or prevent disease, except for the indications for use described in the user manual for your applicable region. Solius does not provide specific medical advice to users. Users should seek advice from a qualified physician or healthcare provider. This website does not establish a doctor-patient relationship. For detailed product information please consult the User Manual prior to use. 

Solius® is a registered trademark of Solius Labs, Inc.
100 Ravine Lane NE, Suite 310, Bainbridge Island, WA 98110

© 2026 Solius Labs, Inc.

Intertek logo

Solius is an FDA-cleared over-the-counter (OTC) UVB light panel intended to stimulate production of vitamin D in people 22 years and older.

Solius is clinically proven to stimulate the production of vitamin D. References to the benefits of sunlight, UVB light, and vitamin D are based upon published, peer-reviewed research. The Solius device is not intended to diagnose, treat, cure, or prevent disease, except for the indications for use described in the user manual for your applicable region. Solius does not provide specific medical advice to users. Users should seek advice from a qualified physician or healthcare provider. This website does not establish a doctor-patient relationship. For detailed product information please consult the User Manual prior to use. 

Solius® is a registered trademark of Solius Labs, Inc.
100 Ravine Lane NE, Suite 310, Bainbridge Island, WA 98110

© 2026 Solius Labs, Inc.