Advice Please!

Hi friends,

I have lifting weights for about two years steadily and I think I am now ready for taking food supplements .I eat four times daily and have seen my friends taking food supplements but I do not want to go for the local products. The food supplement should be clinically tested, standardized product with good quality ingredients. I’ve been reading a lot about Dietary supplements and wonder from where I could get the best one for myself. It would be of great help if anyone could suggest me where to look for standardized food supplements. Thanks!