I have been battling the bulge of my beer belly for over a year, and these filling, chunky and chewy Diet Bars really did help a lot. Compared to other, either bigger or less satisfying, protein bars on the market, Maximuscle again floors all competitors for taste, texture and a feeling of fullness long after consuming these bars. However, I recently began to question the true advantages of having CLA and caffeine in these Diet Bars, over the extremely similar Promax Meal Bars (see my other review). The Promax Meal Bars pack similar calories and protein, but without the caffeine one can be taken after a late night gym session, or even as a high protein bed time snack to help the body burn fat during sleep. The Diet Bars could not be taken at night by myself due to the huge 125mg caffeine content, which kept me awake on the odd occasion I had one at that time. I also feel that the Promax Meal Bars are somewhat more satisfying and - again for me personally - the Diet Bars often created a tummy rumble effect, that the Promax Meal Bars do not. Therefore, although this product is satisfying, and would have been rated 4 star before trying the Promax Meal Bars I have switched to the latter and will keep on chewing them until I reach my weight goal (and probably beyond).