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. The fact is, healthy eating is even more important when your trying to keep up with a busy schedule. Having a good diet will help your body to handle stress better. As you hustle about, a healthy meal is probably the last thing you think about. The following tips can help you eat when your on the go. Sometimes they won't feel thirsty, while other times it's too much work to pour a glass a water. With this in mind, it's recommended that they drink at least 1 ounce of water for every 2.2 pounds of weight. Protein At this stage in life, protein is very important. Protein is needed to support a healthy immune system and prevent the wasting of muscle. One cup of chopped broccoli contains 25 calories, 0 fat, and 3 grams of fiber. Spinach Spinach contains carotenoids that can help fend off macular degeneration, which is a major cause of blindness in older people. One cup contains 7 calories, 0 fat, and 1 gram of fiber. Grains, beans, and nuts Peanuts Peanuts and other nuts can lower your risk of heart disease by 20 percent. Salsa is very low in calories and provides a healthy alternative with plenty of flavor and spice. - When you are full, stop eating. Listen to your body and what it tells you. - If you get full, take half of your meal home. The second portion of your meal can serve as a second meal later. This way, you get two meals for the price of one. If your hotel has a stove or microwave, consider bringing your own healthy food with you. If you simply must eat out, do so only when you are hungry. Restaurants will usually serve large portions, so be careful. If you do go a bit over on a meal, simply cut back on the next. If you find it hard to fit in three square meals a day, try to fit in six smaller meals or snacks, as your body needs fuel every four hours or so.