Thorne Vitamin D-5,000

Vitamin D-5,000 NSF Certified

Thorne’s D-5,000 contains 5,000 IU of high-quality vitamin D3 and is NSF Certified for Sport®. Although it is well known that direct sunlight is a natural source of vitamin D, many individuals, especially the elderly, don’t get enough vitamin D from sunlight or from their diet. Be sure you get the vitamin D your body needs with Thorne’s easily absorbed Vitamin D-5,000.

Benefits of Thorne’s Vitamin D-5000:

• Supports healthy teeth and bones*
• Promotes lean muscle mass and helps maintain muscle strength*
• Enhances the absorption and retention of calcium*
• Supports healthy brain function*
• Promotes cardiovascular health and immune function*
• Formulated with vitamin D3, a more potent and better absorbed form than vitamin D2
• Thorne’s vitamin D contains no lactose and no preservatives like BHT, BHA, sodium benzoate, and sorbic acid

You could be at a higher risk of a vitamin D deficiency if you:

• Rarely go outdoors, live in the northern latitudes, or have a darker skin tone
• Have limited sun exposure due to your occupation, clothing choices, or engage in indoor athletics rather than outdoor sports
• Regularly wear sunscreen with an SPF greater than 8
• Are an older adult (the risk of a deficiency increases with age beginning at age 50)
• Have a chronic health condition, such as a bowel disease or a surgical procedure (like gastric bypass) that decreases fat absorption
• Are obese

The optimal amount of vitamin D for an individual depends on many factors and varies from person to person. Therefore, the requirement for vitamin D supplementation should be individualized. Either of Thorne’s D-1,000 or D-5,000 can be an ideal way to maintain an optimal level of vitamin D in healthy individuals.*

Because an athlete needs to know that his or her supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of more than 200 substances banned by many major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agonists, and masking agents.

An important vitamin for bodily functions

Vitamin D functions as a hormone that regulates calcium metabolism and supports cardiovascular health, bone, muscles, and immune function.* Also, epidemiological studies show higher serum vitamin D levels are associated with a healthier lifespan.* Humans make vitamin D from exposure to ultraviolet radiation from the sun. A cholesterol-like molecule, 7-dehydrocholesterol, is converted in the skin to a pre-vitamin D molecule, which is then converted to 25-hydroxy vitamin D [25(OH)D] in the liver. This form of vitamin D is converted when necessary to active 1,25-dihydroxy vitamin D. Laboratory tests of serum 25(OH)D can detect when the body has a sufficient amount of vitamin D.

Why supplement with vitamin D?

Most experts agree that a serum level of 25(OH)D greater than 30 ng/mL is necessary for vitamin D to exert its benefits on all tissues; however, some researchers advocate that higher levels might be needed, claiming an optimal serum level might be 40 ng/mL or higher.* Dietary sources are usually too low to be beneficial and most people do not get enough sun exposure, so supplementation is necessary.

How much vitamin D is recommended?

Many vitamin D experts recommend at least 1,000 IU of supplemental vitamin D daily, and 10,000 IU or more might be necessary for some people. Other experts recommend weekly dosing of 25,000-50,000 IU vitamin D3. Also, to acutely optimize the immune response, Dr. John Cannell, Executive Director of the non-profit Vitamin D Council, recommends up to 2,000 IU per kilogram body weight for 3-5 days.*

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.