Phytopharmica Krebs Magnesium-Potassium Chelat 60 tabs

What the brand says

Krebs Magnesium-Potassium Chelates 60 tabs The bio-active minerals are chelated to the Krebs cycle intermediates (citrate, fumarate, malate, succinate and alpha ketoglutarate). These organic acids are responsible for energy production within every cell of the body. Minerals chelated to the Krebs cycle intermediates are better absorbed and utilized.