- Dorian Yates Magnesium Citrate is a dietary supplement - It comes in a bottle of 90 tablets - It contains magnesium citrate - Magnesium citrate is a highly absorbable form of magnesium - It supports muscle and nerve function - It supports bone health Dorian Yates Magnesium Citrate is a dietary supplement that comes in a bottle of 90 tablets. It contains magnesium citrate, which is a highly absorbable form of magnesium that supports muscle and nerve function, as well as bone health.