21st Century, Vitamin D3, 125 mcg (5,000 IU), 110 Tablets

Vitamin D3, 125 mcg (5,000 IU), 110 Tablets is a 21st Century dietary supplement formulated around 125 mcg. Vitamin D3 (cholecalciferol) is converted in the liver to 25-hydroxyvitamin D and then to the active hormone calcitriol. This signaling system regulates calcium and phosphate balance and contributes to normal bone mineralization, muscle function and immune physiology. The appropriate intake depends on baseline vitamin D status, diet, sun exposure and clinical context. From a scientific-use perspective, the most useful way to assess this product is to place the labeled dose in context with normal dietary exposure, nutrient status and other supplements being taken. Absorption, metabolism and clinical relevance can vary among individuals, and more of a nutrient is not automatically better. For multi-ingredient products, the combination should be considered as a whole because ingredients may overlap with multivitamins, fortified foods or condition-specific formulas. Its role is best described as nutritional support consistent with the established physiology of its ingredients. It is not intended to diagnose, treat, cure or prevent disease. People using prescription medicines, managing chronic conditions, preparing for procedures, or combining several supplements should review total intake and potential interactions with a qualified healthcare professional.

Consult a healthcare provider before using high-dose vitamin D. Adults take 1 tablet daily with a meal, or as directed by a healthcare provider.

This is a high-dose vitamin D product. Consult a healthcare provider before use, particularly with hypercalcemia, kidney disease, hyperparathyroidism, or concurrent vitamin D products. Consult a healthcare provider before use if pregnant or nursing, taking medications, managing a medical condition, or planning a medical procedure. Stop use if an adverse reaction occurs. Keep out of reach of children. Do not use if the safety seal is broken; store as directed on the label.