See you at the finish line: Blood Builder is easy to digest and absorb.

You sweat. You push. You pull. You go. And if you’re an athlete (yes, jogging counts), you’re at higher risk of developing iron deficiency than the average person7, making it essential to rebuild iron stores lost through all that high intensity, heart-pumping fun.

Blood Builder won’t stand between you and your fitness goals: because it’s made with real, whole foods, our best-selling iron supplement is easy to digest and absorb, and was clinically shown to increase iron stores in participants with low iron levels across an 8-week period—all without constipation, nausea, and other unwanted side effects.*†

View Study Details

D'Adamo, C., Berman, B., Chen, K., & Novick, J. (2016). Effects of a commercially-available, low-dose iron supplement (Blood Builder®) on markers of iron status among premenopausal and nonanemic iron-deficient women. (Manuscript submitted for publication.)