One in seven people cannot convert folic acid to its final usable form. Many are significantly benefited from supplementation of the 5-MTHF form of folic acid. This product helps with detoxification, headaches, thinking, depression and emotional issues, inflammation, and learning disabilities. This genetic defect can play a role in Alzheimers, heart attacks, and strokes. If your family has a history of these conditions, you may want to get checked.
Here is an article that I wrote regarding this widespread problem.