Nutrition is the study of food and nutrients and the science behind metabolism. Nutrition is how the body gains the nutrients needed for energy. Poor nutrition has been linked to disease and early mortality, so it's an important area of study for the medical community.
Significance
Without nutrition, the body would not gain the important macromolecules necessary for life. Food is absorbed and used by cells to create energy molecules, which is the basis of reactions.
Function
When food enters the stomach, it's then pushed to the intestines where the important nutritional factors like vitamins, proteins, fats and carbohydrates are broken down and absorbed.
Considerations
Nutrition needs to be balanced, and some foods, like fats, should be consumed in moderation. Overindulging in fats can lead to poor nutritional balance that leads to obesity and chronic health conditions like diabetes or heart disease.
Misconceptions
Dieting should focus on the right nutritional needs for the patient. Some patients reduce food intake and starve in an effort to lose weight. This is poor nutrition and can lead to adverse side effects.
Sources
Vegetables, fruits, meats, whole grains and dairy are all sources of good nutrition. Vitamins are also available as over-the-counter supplements.
