Learn about how to prepare foods Instead of deep frying, try grilling, stir frying, microwaving, baking, and even boiling. You should also try fresh or even dried herbs and spices to add flavor to your food. Before you eat any type of meat, be sure to trim the fat and skin off of it. 3. Avoid a lot of sugar Drinks that contain sugar are a major source of empty energy. Good sources of iron include dark leafy green vegetables and meats. Iron supplements should be avoided, as they can cause internal symptoms such as cramping, constipation, or diarrhea. Vitamins Seeing as how you get a majority of the vitamins you need in your diet, you may want to discuss prenatal vitamins with your doctor. When your body gets ready for sleep and slows down, it also burns calories at a much slower pace. Never eat bread before bed, and make sure to avoid the butter. Choose fish or poultry for your meal instead, and include vegetables as a side dish. Even though it may sound hard, eating healthy on vacation isn't really that difficult. Fruits and vegetables are your best bets, as they are loaded in vitamins, minerals, fluid, and fiber. 3. Skipping breakfast. Skipping breakfast is never a good idea, as breakfast starts the day. Your body needs fuel as soon as possible, and without it, you'll be hungry throughout the day. 4. Low carb diets. Tomato based sauces are much lower in fat and calories, and tomato sauce can even be counted as a vegetable! - You should always try to drink water, diet soda, or tea instead of soda or beverages that contain alcohol. - If you order dessert, share with a friend. Half of the dessert will equal half of the calories. 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. When it comes to defending against illnesses, vitamins and minerals are very important. Just because they are important, isn't a reason for students to run out and stock up on vitamins and supplements.