However, I am concerned that you may not be consuming enough calories or protein for bodily functions. It is possible your cutback in dietary consumption could be causing what you describe as heartburn. This could be contributing to the constipation that you describe. There are many different types of diets that one may hear of and not all will provide you with the building blocks you need for successful nutrition. You will need to make permanent changes in eating and exercise for a healthy lifestyle.
Exercise is a very important component to a successful diet.
Keep your total fat intake at or below 30 percent of your total calories and limit your intake of saturated fats, which contribute to high blood cholesterol levels, to no more than 10 percent of your total calories. Limit your intake of dietary cholesterol to no more than 300 milligrams per day. These foods also can provide you with 20 to 30 grams of dietary fiber that experts recommend you consume each day. Protein should make up only about 12 to 15 percent of your daily calories, and the protein should come from low fat sources. Fruits and vegetables are rich in complex carbohydrates, have a high water content and relatively few calories.