L am feeling very weak after a month of low calorie dieting. what should i eat in order to recover my health but not regain the weight?

Nutritarian Diet: You want to eat foods relatively dense in nutrients, that is a high nutrient to calorie ratio. This is what dr. Fuhrman calls a nutritarian diet. This is a diet one can maintain long term; it helps you to achieve and maintain a healthy weight and have optimal health. You don't need to count calories, just eat the proper foods. See http://bit.Ly/1dhw9ht for details.