Since my wife and I started following @bryan_johnson’s Blueprint, our AST levels have climbed to…

Since my wife and I started following @bryan_johnson’s Blueprint, our AST levels have climbed to critical range. AST is a liver enzyme that shows how healthy liver and muscle cells are. It rises when cells are stressed or damaged, usually from alcohol, excess supplements, or intense exercise. We work out daily (but not intensely). We don’t drink. We eat clean. That leaves supplements as the likely cause. We’ve switched to taking them every other day and will retest in two months. Still can’t figure out how Bryan keeps his AST at 13 U/L (top 5%) with all the supplements he takes.