Thorne’s Iron Bisglycinate is a smarter choice for iron supplementation because it tackles the common issues of poor absorption and digestive discomfort head-on. Traditional iron supplements, like ferrous sulphate, can cause unpleasant side effects—nausea, constipation, and more—due to their difficulty being absorbed by the body. Thorne’s formula combines iron with glycine to enhance absorption and drastically reduce these side effects. Plus, with NSF Certified for Sport® certification, Thorne’s Iron Bisglycinate guarantees top-tier quality, purity, and safety, making it a reliable option for athletes and anyone needing effective, gentle iron support.

Thorne sets the standard for excellence in the supplement industry. Recommended by over 100 professional sports teams and U.S. National Teams, Thorne offers a curated bundle of clean, science-backed supplements and treats designed to fuel your body naturally and effectively. With more than 30 years of dedication to quality, Thorne's commitment to purity and potency begins with sustainably sourced ingredients and rigorous testing. Every supplement undergoes four rounds of testing to ensure optimal absorption, safety, and efficacy, making Thorne the trusted choice for both health-conscious individuals and professionals.

Here at Healf we do the work for you, every product goes through a 3 step curation process of Discovery, Expert Validation, and Community Testing. So you know you are only getting the best.