ZMA combines zinc and magnesium in a single supplement. Both minerals are lost through sweat during exercise. A meta-analysis (Chu et al., Sports Med 2017) found serum zinc drops significantly during exercise recovery. ZMA is calorie-free – tracking is about the minerals, not energy.
How should I track ZMA supplement (zinc magnesium)?
ZMA supplement (zinc magnesium) is high in zinc. Supplement tracking comes down to two things: measuring the supplement itself and logging everything around it. For powders like ZMA supplement (zinc magnesium), a kitchen scale beats a scoop — scoops typically deliver 10–20% more than the stated serving (Almiron-Roig et al., Appetite 2013, found portion errors of 50–200% for dense foods). For capsules and tablets, count-based tracking is simpler but still matters at multiple daily doses. The real tracking trap is what you mix supplements with — milk, fruit, or nut butter can turn a 30-calorie serving into a 400-calorie shake. Log each ingredient separately for an accurate total.