Homocysteine: Levels, Tests, High Homocysteine Levels

Homocysteine is an amino acid. Vitamins B12, B6 and folate break down homocysteine to create other chemicals your body needs. High homocysteine levels may mean you have a vitamin deficiency. Without treatment, elevated homocysteine increases your risks for dementia, heart disease and stroke.

Cleveland Clinic Homocysteine: Levels, Tests, High Homocysteine Levels