I'm still messing around with the settings but I've had better success since I've personalized the settings. Right now, as a generic setting (until I can double check with my surgeon and nutritionist at my 1 month post-op appointment) I'm at 1,000 calories. My food is all low-fat, sugar-free, vegetarian, and high-protein so I haven't gone so far as to experiment with those specific settings yet. After my follow-up I may try it. However, based on my calorie personalization, I do notice a difference, even if I -am- still getting that "starvation mode" message.