The Health Effects of Vitamin D Supplementation: Evidence from Human Studies

This review provides a comprehensive analysis of the role of vitamin D in health, particularly focusing on older adults. Vitamin D is well-known for preventing and curing nutritional rickets in infants and children and is essential for bone health in older adults, with guidelines recommending serum 25-hydroxyvitamin D (25OHD) concentrations above 50 nmol/l. However, the […]

Immunomodulatory Effects of Vitamin D and Prevention of Respiratory Tract Infections and COVID-19

The review examines the potential role of Vitamin D as a protective factor against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), commonly known as COVID-19. It addresses a critical gap in understanding how suboptimal Vitamin D levels may contribute to immune dysfunction and increase the susceptibility to respiratory tract infections (RTIs) and viral infections. […]

The Synergistic Interplay between Vitamins D and K for Bone and Cardiovascular Health: A Narrative Review

The review examines the combined effects of these fat-soluble vitamins, both essential in calcium metabolism. Vitamin D is crucial for producing vitamin K-dependent proteins, which need vitamin K for their activation. This synergistic interaction is particularly beneficial for bone and cardiovascular health. The review brings together evidence from animal and human studies, showing that optimal […]

Vitamin K: Understanding Recommended Doses, Sources, and the Need for Supplementation

Vitamin K, an essential nutrient known for its role in blood clotting and bone health, is found in various food sources and also produced by gut bacteria. The recommended daily allowance (RDA) varies with age, gender, and life stage, with specific recommendations for certain groups like newborns and individuals on anticoagulant therapy. This article explores […]

Vitamin K and Vitamin D: A Synergistic Duo

The interplay between Vitamin K and Vitamin D in human health is a subject of increasing interest in the medical community. These vitamins, essential for various bodily functions, have been studied extensively for their individual roles. However, recent research has shifted focus towards their synergistic effects, particularly in bone and cardiovascular health. Vitamin K is […]

The Role of Vitamin D in Enhancing Athletic Performance and Recovery

While most people associate Vitamin D primarily with bone health, emerging research reveals its significant impact on various aspects of physical fitness and sports performance. Enhanced Muscle Function Vitamin D is crucial for optimal muscle function. Research indicates a strong correlation between adequate Vitamin D levels and improved muscle protein synthesis, ATP concentration, strength, and […]

Vitamin D: Dosage, Sources, and Need for Supplementation

Vitamin D, often dubbed the “sunshine vitamin,” is vital for bone health, immune function, and overall wellbeing. Its primary source is sunlight exposure, but it’s also found in certain foods and available as a supplement. This article discusses the recommended doses of Vitamin D, its dietary sources, and the necessity of supplementation. The recommended daily […]

Vitamin D Supplementation: A Key to Healthy Growth in Children

The significance of Vitamin D in promoting healthy growth and development in children has been a focal point of numerous research studies. Vitamin D, often hailed as the “sunshine vitamin,” plays a critical role in bone health, immune function, and overall growth in children. Ganmaa et al. (2022) emphasize that adequate Vitamin D levels are […]