Having a deficiency of which nutrients has been implicated in increased blood levels of homocysteine in the elderly?

Question

Quizplus · Accepted Answer

Vitamin B₁₂ and folate deficiency have been implicated in increased blood levels of homocysteine in the elderly. Iron deficiency may contribute indirectly through poor folate status, but it is not directly implicated on its own. Calcium, vitamin D, and vitamin C deficiencies are not known to be associated with increased homocysteine levels. While all the B vitamins are involved in homocysteine metabolism, deficiencies of vitamin B₁₂ and folate have the greatest impact. Fat-soluble vitamins are not involved in homocysteine metabolism.

Having a Deficiency of Which Nutrients Has Been Implicated in Increased