What oxide/citrate ratio does your magnesium have?

In our 1000mg pills, the source value of Magnesium Oxide (67%) is 666.67 mg, of which 400 mg is elemental. The source value for Magnesium Citrate (33%) is 333.33 mg, of which 100 mg is elemental.

The compound Magnesium Oxide is made up of magnesium and oxygen. Magnesium Citrate is a salt made up of Magnesium and Citric Acid.