4 days ago I got a methyl B12 and B6 shot from my doctor after testing positive for a genetic mutation called mthfr a1298c - my body doesn't process B vitamins correctly. Anyways, the next day I got rid of a bunch of parasites, and have been for days. They look like roundworm. Supposedly I am parasite free according to some recent labs, but obviously not. And I guess methyl-B can help your body get rid of parasites.