According to Dr Phinney in his e-book The Art and Science of Low Carb Living, dietary ketosis takes place while you are consuming much less than 20 grams of carbs an afternoon and forcing your body to break down your fat cells for strength. In that system, ketone our bodies are fashioned and your body uses these for power. Lachie Smith, left, Lachie Hanser, Adrienne Roberts and Logan Ring show off their Chicken Alfredo on Pasta.