There is also the PSMF 'diet' that's calorie restricted, but relatively protein rich. Don't do it exactly now, but find I can go quite a long time comfortably on a mid-morning snack: canned tuna salad, sardines, beef jerky or some almonds and cheese.

This keeps my activity level up where it should be and fasting blood sugar down till I have an earlyish supper. It's tough to lose the last 10 pounds in any case.