As I started getting ridges in my nails, I figured I'd benefit from a good quality multi vitamin. I'm already prescribed high strength vit D by my physician and I liked that I could include the higher dosage in my riise specification rather than taking multiple pills. I'm just finishing the first delivery and already my nails are back to normal and I seem to be maintaining my Vit D levels ok (bloods will hopefully prove that). I really like that I have the opportunity to tweak the different levels of vitamins and minerals in the future if I need to. I just take the doses with a drink, and that works for me. Overall a great decision to try riise!