Now as for exercising Legends Keto goes, you should do intense resistance training. Their by far the fastest way to slim belly, because of the use of weights involved. Now this isn't the only exercise you can use. br I was going to a special event that I have been looking forward to for months. I wanted to wear something new and I new that, although I haven't stepped on the scale since I gave up sweets, there is definitely some belly missing.