I wouldnt call it a diet, but yes it certainly is great for cutting. Ive tried it twice in the past, and it skyrockets your metabolism. I literally had problems sitting still at work, which caused the end of me using the diet the first time.
The second time I got incredible results. I dropped about 6% BF(From 15% to 9%, from 192) in just over 3 weeks, and had no notable muscle loss. And this was in my prime. If you find a good link, post ot for the benefit of others here. Personally Id like to do some more reading on it myself as I originally didnt give it much though and only scanned through it