I ordered these for my husband who had a vitamin B12 deficiency as these have a high level of B12 and include the rest of the vitamin B complex vitamins. It is hard to always get adequate vitamins from the food we eat and as we get older many people have a hard time absorbing these supplements due to medications for indigestion, heartburn, acid re-flux and more. After taking these for 2 months, my husband's levels went from extremely low to higher than borderline. He has a ways to go, but these have helped immensely with not only his increasing his levels but decreasing many of his symptoms from his low level. He was displaying symptoms of depression, anemia, memory fog primarily and these are gradually going away. They say it takes anywhere from 6-12 months to heal this B12 deficiency, so this is amazing after just 2-3 months! I also started taking them myself which is so important, especially for those people over age 55