I have been going to gym consistently for about 2 years , the first 6 months of which i only used protein powder as a supplement . After these 6 months a friend recommended me to use Animal Pak multivitamins and i have taken on that advice . The most important benefits of these multivitamins is that they affect directly your recovery rate , the amount of effort you can put up with and your strength . it also adds more vitality/energy in your day to day life which is fantastic . The only downside to these multivitamins that others could find is the size and the amount of the pills you have to swallow as a pack . These vitamin pack has been around since 1983 and is still classed or rated as the best combination of multivitamins as you can get from the market.