Domestic orders placed by 5 PM Eastern Time will be packed and shipped the
same day, pending verification of billing information and the shipping
Orders containing refrigerated items will be processed as quickly as possible, but won't necessarily be shipped out the same day.
If an item on your order is on backorder we will notify you by email
and we will ship what we have in stock, the backordered item (s) will be
shipped as soon as it is back in stock (usually within 1 week or less)
Excludes all orders placed during weekends and on major US holidays(Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day)
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Order before 5 p.m. EST and this item will ship out today. Except during weekends and holidays.
We’re fast like that. Place your order before 5 p.m. and it will ship the same day, as long as we can verify billing and shipping information. Refrigerated items will be processed quickly, but might not ship the same day.
If it’s backordered, we’ll notify you by email and will ship it when it’s available (usually 1 week or less).
KLEAN-D™ by Klean Athlete® contains 5,000 I.U. of natural vitamin D3 per tablet. Vitamin D supplementation may help support immunity, musculoskeletal strength and physical performance in athletes.
KLEAN-D™ is tested and certified by the NSF Certified for Sport® Program, which was created to meet the growing demands of athletes, coaches and healthcare professionals to certify that sports supplements are safe and completely free from banned substances. Every product that carries the NSF® for Sport mark has undergone stringent laboratory testing to confirm content, purity and compliance.
Functions: Vitamin D, also known as the “sunshine vitamin” is an essential vitamin that plays many important roles in the proper functioning of the body. Though classified as a vitamin, vitamin D is actually a key regulatory hormone for multiple physiological processes. It is estimated that 1 billion people, including the elderly, young adults, athletes and children, are vitamin D deficient or insufficient. The main cause of vitamin D deficiency in the athletic population is the direct result of decreased ultraviolet B (UVB) radiation absorption into the skin, which especially affects indoor athletes and those who live and train in northern latitudes.
Adequate vitamin D status is essential for ensuring normal calcium absorption and maintenance of healthy plasma calcium levels. Besides bone support, vitamin D has many other roles in the body, including modulation of cell growth, neuromuscular and immune function, and inflammatory support. Clinical research has shown there is a positive association between Vitamin D 25(OH)D serum concentrations, lower extremity function, proximal muscle strength and physical performance. Vitamin D deficiency is associated with diffuse muscle pain, muscle weakness predominantly in the proximal muscle groups, and a reduction in performance speed. A serum 25-hydroxyvitamin D level below 50 nmol/l has been associated with increased body sway and a level below 30 nmol/l with decreased muscle strength. Based on the study by Barker et al, pre-exercise serum 25(OH)D concentrations could influence the recovery of skeletal muscle strength after an acute bout of intense exercise.
Numerous scientists now feel that supplementation with vitamin D at levels greater than previously thought necessary is critical to helping maintain healthy bone remodeling and healthy vitamin D plasma levels. A committee of the Institute of Medicine reviewed the data on vitamin D needs and concluded that persons are at risk of vitamin D deficiency at serum 25(OH)D concentrations <30 nmol/L (<12 ng/mL), and practically all people are sufficient at levels ≥50 nmol/L (≥20 ng/mL). Vitamin D is fat-soluble, so it should be taken with foods containing fat to aid in absorption through the small intestine. Vitamin D intoxication is extremely rare. Doses of 10,000 IU of vitamin D3 per day for up to 5 months did not cause toxicity. The latest United States recommended dietary allowance (RDA) for vitamin D is 600 IU per day. However, dietary intake may vary for athletes based on diet and intestinal absorption and the amount of sunlight exposure, thereby requiring higher supplemental doses.
Product Highlights: 1) Recent reseach shows that inadequate Vitamin D levels can be associated with muscle weakness and may impact athletic performance. 2) Vitamin D may influence the quality, frequency and duration of physical training. 3) Supplemental Vitamin D is crucial for athletes that train indoors and live in northern latitudes.
Indications: KLEAN-D may be a useful dietary supplement for athletes desiring healthy vitamin D levels.
These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose, treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.
Serving Size: 1 Tablet Servings Per Container: 100
Amount Per Serving / % DV
Vitamin D-3 (Cholecalciferol) 5,000 IU / 1,250%
Other Ingredients: Cellulose, croscarmellose sodium, calcium carbonate, silica and vegetable stearate.
As a dietary supplement, adults take 1 tablet daily with a meal or as directed.
People consuming more than 2,000 IU per day should have their vitamin D blood levels monitored by a healthcare professional. Keep out of reach of children. For optimal storage conditions, store in a cool, dry place. (59˚-77˚F/15˚-25˚C) (35-65% relative humidity). Tamper resistant package, do not use if outer seal is missing.
PureFormulas is your one-stop shop for health supplements, vitamins, minerals and other nutritional supplements. We carry thousands of products from a huge variety of prescreened manufacturers because our goal is to help you achieve optimal health, regardless of your age, lifestyle or location.
At PureFormulas, we hand pick every item in our inventory. We only work with the most reputable, trusted manufacturers of vitamins, minerals and nutritional supplements.
When you order from PureFormulas, you're getting access to our large inventory, the convenience of fast, free shipping, and the comfort of knowing your order is guaranteed authentic and fresh. Our dedicated team is here to make sure you have access to the best health supplements, vitamins and minerals and other nutritional supplements. Our friendly, efficient customer service is second-to-none, and we guarantee your satisfaction on every order you place through PureFormulas.
We invite you to browse our large selection of vitamins and minerals, nutritional supplements and other health supplements, and please contact us if you have any questions. We look forward to meeting your needs today!
Domestic orders placed by 5 PM Eastern Time will be packed and shipped the same day, pending verification of billing information and the shipping method selected. Orders containing out-of-stock items or refrigerated items will be processed as quickly as possible, but won't necessarily be shipped out the same day.
Excludes all orders placed during weekends and on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year’s Day).