My Dr. suggested this multi vitamin . I've never been good at taking vit.b/c I couldn't tell a difference. BUT, after being on Alive for about 1 week I was gardening for hours, cleaning out closets, energy, energy, energy ! I finally had the energy to do the tasks I wanted to do. My husband asked who I was and where was his wife?? I thought about it and realised it was the Alive vitamins ....I feel so much better overall than I've felt in several years. I will always take these. I turn 50 in a few days and have more energy that my younger sisters. I'm a beliver !