Erectile dysfunction can be a sign of other health problems, and so it is important to see one's doctor prior to taking over-the-counter supplements. There is little to no evidence that vitamin supplements can treat erectile dysfunction. With that said, there are many supplement products that are being marketed as erectile dysfunction treatments regardless of if they work or not, such as: ginkgo, ginseng, l-arginine, yohimbine, and lepidium meyenii.