This stuff is great. I use it because I don't want to put on weight whilst training and it helps with trimming. I use it around 11 (after a 7am breakfast) and it tides me over until a late lunch. Just to be clear about negative reviews regarding mixability. Diet whey from all brands has 'flecks' in it to add the feeling of sustenance to the shake. These may appear to be unmixed clumps of protein but they are not. This is the same stuff as the PhD equivalent only it's more than 1/3 cheaper. Can't quite believe it's taken me this many years to find myprotein and more importantly their prices.

"Really amazing effective stuff. I have been near living on Impact Diet whey for a few weeks now (as well as cleaning up my diet from carbs and fat, and training regularly) and have seen my weight dropping off, but muscle tone increasing. People are complaining about the mixability and grainy texture, er hello, it has psyllium husk in it - this is insoluble in water and creates the grainy effect, it's also a zero-carb fibre so expands in size when it's in your stomach (making you feel fuller) and aids digestion. Double chocolate tastes wicked and pretty much doubles as a meal replacement when mixed right. It also works for breakfast and as your normal post-workout protein source. Green tea and vitamin C in there as well, what's not to like? just buy it!"

"I don't want to be one of these reviews where all they talk about is taste and mixability, to be honest if it gets me the results I want I couldn't give a monkeys what it tastes like. The effectiveness of this product I have found to be high, after a week or so with a specific training scheulde I have noticed some significant weight loss. I'll keep on with these product for sure. However if you do care about taste and what not, I would steer clear of the double-choc flavour"

"Got myself a bag of the mocha flavour, as I love coffee I realy liked the flavour but my main problem was with the lumpy rice like bits of fibre, wich gives it a vomit like texture. I know its a suplement so its main priority is not for it to be tasty, but my advice would be to go for true whey instead and get that fibre by eating fruit and vegtables. As the true whey I enjoyed drinking where as this makes me gag."

"In all fairness, it's a great product.. it doesn't taste amazing.. but it's a protein shake thats under 200 calories, try and find a nice tasting shake thats as beneficial as this, with that amount of calories.. secondly, a tip, add a bit of warm water to your mix, and leave for 15 mins before you drink! works wonders!! at a push, i can manage on 2 of these a day drinking alot of liquids, but do advise other foods also, noiced a good loss so far and will be ordering more!! great delivery too!"

Been using this product for 2 weeks now and loving it.I definately feel better for it and not anywhere near as sore after workouts as i was before using it.Im toning up nicely and putting on muscle bulk which is noticeable even after using it for only two weeks. I love my food and probably dont eat as well as the purists do but i get the balance right and this product helps.Already losing body fat too which i can only attribute to the product aiding my workouts. Im 42 and decided to regain a bit of my youth by getting on the weights again and i reckon with this stuff aiding my progress should be looking pretty buff by the summer.

"I love My Protein.. But this is horrific, Double Choc, doesn't mix well tastes like s*** and if you compare to True Whey (which mixes perfectly and tastes great) it's actually no less calorific, you need two scoops which makes it even less tolerable and 400 calories?? in comparison to True Whey's one scoop.. Don't waste your money on this, just stick to True Whey and buy the MP green tea tablets + CLA . Mine is now in the bin £22 wasted."

I have just finished the 1.45kg bag of this product in the flavour of strawberry shortcake. The product is effective and tastes good. The best thing about diet whey for me was that it does make you feel full so that snacking in between meals isn't needed and your body is getting the correct nutrition after workouts. I feel that it doesn't mix very well with water and sometimes you can get a mouth full of undissolved powder. I have now purchased Impact Whey instead of diet after a recommendation from a friend.

"This product is great, keeps me feeling full from breakfast to lunch which i was very sceptical at first but it sure does work. Just enough carbs to stop me from feeling sluggish. The only downside is it is just a bit too sweet, i got the latte flavour and although it tastes good it is a tiny bit too sweet. Apart from that great product. Only had it for 4 days so cant comment on weight loss though but for recovery from training and keeping you feeling full its top dollar."

"I take the tablets in the morning with breakfast and I use this as a lunch meal replacement after workout so only one shake a day, now on my 3rd bag this Has helped me loose 18kg of fat over 3 months and works very well for me in helping me reach my goals and recovery after work outs"