I was search for a Magnesium pill that is highly absorbable at a potency level of 400 mg to compliment my intake of vitamins D3 and K2 which I take together after a meal. During purchase, I realized I was settling for 350 mg as indicated on the KAL label. Upon receiving the product and reading its back label, I learned that I need to take 3 of these pills to reach the 350 mg level. So….on a per/pill basis, this product is 3 times more expensive than I thought and a nuisance. I'll probably throw the KAL Magnesium bottle out and find another product that gives me what I want: Mg, 400 mg in 1 pill, within a bioavailable compound.