The nutrients of concern for vegans, who avoid all types of animal food, are vitamin B12, calcium, and vitamin D. In the average North American diet, the primary source for B12 is animals. To have an adequate intake of B12, vegans should reguarly consume vitamin B12 supplements or foods, which contain vitamin B12, such as soy products or milk. 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. 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. 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. Although they are fine every once in a while, they don't deliver the antioxidants you need to prevent cancer. - When ordering a baked potato, ask for salsa instead of sour cream, butter, cheese, or even bacon. 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. If you plan to drink sugary drinks, don't go overboard - limit yourself to 1 a day. 4. Avoid thinking about diets There are no good food nor any bad foods. All food can be a part of a healthy diet, when eaten in moderation. You don't need to buy any low carb, fat free, or even diet foods, as these foods normally have lots of other added ingredients to replaces the carbohydrates or fat.