The artificial sweeteners (aspartame) are unsafe additives are used in many diet beverages. Some scientists also believe that aspartame can cause problems with brain function and behavior changes in people who consume it. For example, western cultures have sky-high rates of heart disease, cancer, stroke, diabetes, etc.
Appropriate nutrition is a necessary condition to maintain a good health.Besides, there are other sources containing noticeable amounts of some nutrients.For example, fortified milk is often an excellent resource of vitamin D and calcium; tofu is probably the most preferred resource of protein and calcium for many people.There are many side effects related to this popular eating habit, most of which are damaging to our health and personal care.Eating fast food regularly may cause our bodies to be deficient in the vitamins and minerals we need maintain good health; also, eating fast food can be very addictive, and people accustomed to it rarely change their eating habits. In conclusion, understanding some basic knowledge of the relationships between nutrition and health, and nutritional foods is good for our healthy life.Minerals are mostly available from meat, poultry and fish.For example, red meat is a rich source of iron that is well absorbed.Proteins are polymers of amino acids that are needed for synthesis of body proteins in muscle, organs, bone and skin, and for synthesis of enzymes, certain hormones, antibodies and a host of specialized products (Human amino acid requirements: can the controversy be resolved). The second category includes various kinds of vitamins, such as A, B-12, B-6, C, D, E, biotin, choline, folate, and thiamin.They play a wide variety of roles in making our bodies work normally.Although foods can provide the nutrients to our bodies, not all of them are healthy, and some are even harmful.In recent years, people have realized more and more the harmfulness of saturated fat, addictives, and some bad eating habits.