Maintaining a healthy diet is the practice of making choices about what to eat with the intent of improving or maintaining good
health. Usually this involves consuming necessary
nutrients by eating the appropriate amounts from all of the
food groups, including an adequate amount of water. Since human
nutrition is complex a healthy diet may vary widely subject to an individual's
genetic makeup, environment, and health. For around 20% of the planet's population, lack of food and
malnutrition are the main impediments to healthy eating; people in developed countries are however more concerned about
obesity.
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