Vitamin D3: Supports healthy teeth, bones, and muscles, as well as cardiovascular health and immune function*
Optimal Absorption: Vitamin D3 is more potent and better absorbed than vitamin D2*
NSF Certified for Sport: Tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations
Free From: Doesn't contain gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners
