If your interested in health this guy Gary Brecka is well worth a listen too imo, he explains about nutrient deficiencies, why we have them and the difference between folic acid and folate and other vitamins/nutrients being better for us in methaylated form. He's done human biology degrees and use to work for insurance companies, this video is well worth a listen if one is interested in their health when you've got a spare half hour imo.
