loss of appetite

I have only just started this round of dieting, but overall I've dieted for years and I totally understand what you're saying. To start out dieting, I always switch my foods over to very low calorie versions to try to wean myself into the shock of eating less. As time goes by, I would get used to eating less and less. I would notice I could barely eat up the calories I was supposed to. After that, I started switching my foods back to versions with slightly more calories - instead of fat free milk, I'd use 1 or 2%. Instead of my 45 calorie per slice Sara Lee Whole Wheat bread, I'd switch to a 90 calorie per slice whole wheat brand. Instead of eating low fat yogurt at 50 calories per container, I'd switch back to a regular brand that's 100 calories per container. Or I would start adding granola to what I'm eating already (granola is high in calories, healthy calories, too) like on my cereal or in my yogurt or in my oatmeal, just to up the calories a little bit. The same with diet soda - I'd switch back to a regular soda (one with real sugar, not high fructose corn syrup) so it's a little bit easier on the calorie count at the end of the day. Or just throw in an extra piece of fruit here or there.