If a woman ate 1500 calories a day, along with some exercise, she would be able to lose about 1 pound a week. For a male, eat 2000 calories a day with some exercise, and you should also lose about 1 pound of weight a week. If you actually meant to say 100 calories per day, I would say you're crazy. A 10 month BABY needs around 820 calories each day. Now I can safely assume that you are NOT a 10 month old baby, therefore if you are eating 100 calories per day, then you are depriving your body in an extremely dangerous way.
To encourage ketone production, the amount of insulin in your bloodstream must be low. The lower your insulin, the higher your ketone production. And when you have a well-controlled, sufficiently large amount of ketones in your blood, it’s basically proof that your insulin is very low – and therefore, that you’re enjoying the maximum effect of your low-carbohydrate diet. That’s what’s called optimal ketosis.
Conversely, the more food in front of you, the more you’ll eat—regardless of how hungry you are. So instead of using regular dinner plates that range these days from 10 to 14 inches (making them look empty if they’re not heaped with food), serve your main course on salad plates (about 7 to 9 inches wide). Instead of 16-ounce glasses and oversized coffee mugs, return to the old days of 8-ounce glasses and 6-ounce coffee cups.