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KLEAN-D by Klean Athlete® contains 25 mcg (equivalent to 1,000 I.U.) of natural vitamin D3 per tablet. Vitamin D supplementation may help support immunity, musculoskeletal strength and physical performance in athletes.
Key Benefits and Features:
| Serving Size: 1 Tablet | Amount/Serving |
| Vitamin D3 (as cholecalciferol) | 25 mcg (1,000 IU) |
Other Ingredients: Microcrystalline cellulose, calcium carbonate, stearic acid, vegetable stearate, and silica.
Gluten-Free, Non-GMO, Vegetarian, NSF Certified Sport
As a dietary supplement, adults take 1 tablet daily with a meal or as directed by a trainer, coach, or health professional.
Warning: If you are pregnant, nursing, have any health condition, or are taking any medication,
consult your health professional before using this product. Use only if the safety seal is intact. Keep out of the reach of children.
Storage: Store in a cool, dry place, away from direct light. Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.
Vitamin D is a fat-soluble vitamin and is assessed by measuring serum 25-hydroxyvitamin D [25(OH)D] concentrations. Widely known for its role in healthy bone metabolism, Vitamin D enhances intestinal calcium and phosphorus absorption to enable normal bone mineralization. Studies have shown that adequate vitamin D levels are important for enhancing bone strength and density. Among its other health functions, vitamin D plays a critical role in the musculoskeletal system, as vitamin D sufficiency is correlated with optimal muscle function. Several clinical studies have shown that supplementation with vitamin D improves muscle strength and may enhance physical performance, suggesting a beneficial use for athletes. Additionally, studies have shown a positive correlation between maximal oxygen uptake (VO2 max) and serum 25(OH)D concentrations, which may enhance physical activity. Vitamin D may also decrease post-exercise recovery time by increasing cellular matrix proteins, which are critical for skeletal muscle repair.
Besides musculoskeletal support, vitamin D has many other roles in the body, including modulation of cell growth and cell signaling, metabolic health, cognitive/mood support, and immune health.
