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. All you have to do is use a little will power, and pass up foods that you know aren't good for you. Carbs and fiber Carbohydrates are the main source of energy for the entire body. You can find carbs in bread, cereals, pasta, and other grain products. A diet that's high in fiber and water will help to prevent constipation as well. Fat Fat intake for the elderly should be limited, not eliminated. You can limit fat by choosing lean meats, low fat dairy products, and food preperation methods that don't include frying. You can use butter with cooking, baking, or even as a spread. 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. 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. Because they don't eat meet, vegetarians will often wonder how they'll get enough protein. Although you may not realize it, the average American actually consumes more protein than he actually needs. For the lacto-ovo vegetarian, dairy products are an excellent source of protein. Vegans on the other hand, get their protein from nuts, seeds, and soy products. Fiber supplements such as Metamucil and Citrucel are safe to take during pregnancy. Protein Unless you happen to be a strict vegetarian, your protein intake is not normally a problem for women who eat a healthy diet. Iron A lot of women will start their pregnancy off with a bit of iron deficiency. Good sources of iron include dark leafy green vegetables and meats.