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®

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 athletes need to know their 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.