I got the 5 pack and am liking the results so far. Its a bit of effort remembering to take it so for me it has lasted more than 5 days as I haven't been taking them before every single meal, mostly just the ones that have more fat. For the ones I have taken it for though I can definitely feel a difference and it has helped me be more conscious of the amount of fat in each meal I eat. I've tried other ones but ave found they were okay but after using this I realised they were actually pretty rubbish in comparison. I think I will continue using these, maybe not for 3 meals a day but for the ones I feel I need it.