Working out on an empty stomach. If you hear a rumbling noise in your stomach, the rumbling is trying to tell you something. Without listening to them, you are forcing your body to run without any fuel. Before you exercise or do any physical activity, always eat a light snack such as an apple. 2. Relying on energy bars and drinks. - Plain bread or rolls are low in both fat and calories. When you add the butter and oil, you increase the fat and calorie intake. - As key ingredients to your meal, choose dishes with fruits and vegetables. Both fruits and vegetables are great sources of dietary fiber as well as many vitamins and minerals. Carry a snack Keeping some protein rich snacks in your car, office, or pocket book will help you avoid blood sugar level dips, the accompanying mood swings, and the fatigue. Trail mix, granola bars, and energy bars all have the nutrients you need. Healthy munchies If you like to munch when you're stressed out, you can replace chips or other non healthy foods with carrot sticks, celery sticks, or even sunflower seeds. You can also pair it with creamy sauces, marinades, baked dishes, or even bread. 4. Margarine Margarine was first introduced as an alternative to high fat butter. When it was first created however, it was loaded with trans fat, a substance that we now know raises bad cholesterol. As a cooking oil, margarine tastes good, it's lower in fat than most oils and butter, and it's quite easy to spread. Along with milk, other great sources for calcium include dairy products, calcium fortified juices, and even calcium tablets. Fiber Fiber can help to prevent constipation, which is a common pregnancy problem. You can find fiber in whole grains, fruits, and even vegetables. Fiber supplements such as Metamucil and Citrucel are safe to take during pregnancy. The food choices students make can affect whether or not they are able to remain awake during class and whether or not they will come down with mononucleosis when it hits campus. The problem is not only about eating junk food, it's more about not getting the proper proteins, carbs, vitamins, and minerals that people need.