Getting Tested for MTHFR Gene Variants Is All the Rage—But Here’s Why I Don’t Suggest It

Depression. Autism. Breast cancer. Alcoholism. Type 1 diabetes. Heart disease. What do these supposedly have in common? Many alternative health websites like to talk about a supposed link between these conditions and a gene called MTHFR—but there's no indisputable evidence that the link really exists. If you’re unfamiliar with the MTHFR gene, it stands for […]