Diet and Cardiovascular Disease The Choose My Plate plan from the federal government is a guideline to help you eat a healthy diet. Nutrition's Role in Disease Prevention Evidence is mounting that a healthful diet can help protect you from some diseases. What you eat -- or don't eat -- may help prevent heart disease, cancer, osteoporosis and type 2 diabetes. Cholesterol in the Blood The cholesterol in your blood comes from the foods you eat and your liver—but your liver makes all of the cholesterol your body needs. Calculating Calories and Fat Grams Here's a formula to help you figure out how many calories and fat grams you need each day to maintain your current weight. Determining Your Body Mass Index Your BMI gives a fairly accurate assessment of how much of your body is composed of fat. How to Make Heart-Healthy Food Choices Maintaining a healthy diet is one of the best weapons for fighting cardiovascular disease and other heart conditions. Omega-3 Fatty Acids and Coronary Heart Disease Omega-3s are a beneficial and essential form of fat, one that your body needs but can't make. Components of Food When trying to make heart-healthy changes to your lifestyle and diet, it is helpful to know some basics about nutrition. Controlling Cholesterol: Improving Meal Choices With a few simple substitutions, you can reduce the cholesterol in your meals—and boost your heart health. Prevention of Heart Disease Starts in Childhood You may think of heart disease as a problem for adults, not your young children. But diet and exercise habits started in childhood can begin a lifetime of heart health, or a lifetime of heart damage.