purefit keto Anyway that is the basics of it. This is a diet that has worked great to help me loss fat or cut up. Some people say you can bulk on it I have tried several times and it never has worked for me, but as always train smarter not harder.There are diets established centered around this amazing drink, and health nuts rave about them. But are smoothies really that healthy? Well, it matters what you get and how you look at it.