Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*.

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives. NSF Certified for Sport®. 

Vitamin D-5,000 - NSF Certified for Sport

Thorne's D-5,000 is NSF Certified for Sport®. Vitamin D protects a number of important functions in the body.* In addition to supporting healthy bones and muscles, it supports cardiovascular health and immune function.* Although direct sunlight provides natural vitamin D, many individuals of all ages, especially the elderly, do not get enough vitamin D from sunlight and their diet. Vitamin D supplementation can be of great benefit in these situations.* 

Benefits of Thorne's Vitamin D-5,000: 

• 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

However, the powders used in many pre-mixed vitamin D dilutions frequently contain potentially detrimental ingredients such as lactose, as well as preservatives such as BHT, BHA, sodium benzoate, and sorbic acid. Thorne's vitamin D is formulated for individuals who are sensitive to those ingredients. In the United States, the current recommended daily intake of 800 IUs vitamin D is based on the minimum amount to protect against bone disease. However, this amount might not be sufficient to support optimal health.* Research suggests serum vitamin D levels should be in the range of 32-80 ng/mL 25-hydroxyvitamin D. 

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 amount of vitamin D needed to achieve minimum vitamin D sufficiency – generally recognized to be a blood level of 32 ng/mL of 25-hydroxyvitamin D – depends on many factors and varies from individual to individual. Thus, the requirement for vitamin D supplementation should be individualized. Either D-1,000 or D-5,000 maybe be ideal 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.

How to Use 

Take 1 capsule daily or as recommended by your health professional.

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.*

Key Ingredients

Ingredient Amounts:

ALLERGY WARNING

This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

PREGNANCY WARNING