Is Your B12 Status at Risk?
Genetics and excess folate may increase your odds of vitamin B12 deficiency.
You may be consuming plenty of vitamin B12. But, is it getting where it needs to go in your body? New research suggests that, even after absorption (which is sometimes poor), genetic variations held by some people may reduce the vitamin's transport from the intestines to the body's tissues where it does its work. Plus, excessive intake of folate (a different B vitamin) might make this problem worse in people with specific genetics.