Truemass is a fairly decent product, I used it from oct 2006 to may 2007, so I have alot of experiance with this product. If you want to gain weight it will certainly do that. However, if you mix it with milk its going to add a signifigant amount of fat seeing it already contains 15 or so grams of sugar and 17 grams of fat. One note of interest is that upon trying the flavors most of the time I noticed the strawberry gives the least bloded feeling and the cookies and cream the most. The specs on each of the products are different as the calories range from 30 to 60. It could have been in my head or not I don't know. I have also used the cytogainer and I think that is by far the best product for pure mass gains, do not take it 3 times a day. I took 4 scoops post workout and 2 scoops before bed that will give you plenty of pop.