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In nutrition, diet is the amount of food consumed by a person or other organism. The word “diet” often refers to the use of a particular diet for health or weight control reasons (both of which are often related). Although humans are omnivores, each culture and each person has different eating habits or food taboos. This could be due to personal taste or ethical reasons. By individual choice, the diet can be more or less healthy.

A good diet requires the absorption and assimilation of vitamins, minerals, essential amino acids from proteins and essential fatty acids from foods that contain fats, as well as nutritional energy in the form of carbohydrates, proteins and fats. Dietary habits and choices play an important role in quality of life, health and longevity. A healthy diet can improve or maintain optimal health. In developed countries, wealth allows for unlimited calorie intake and possibly poor food choices.

Health authorities recommend that people maintain a healthy weight by limiting their intake of high-calorie foods and sugary drinks, eating plant-based foods, limiting their intake of red and processed meats, and limiting their alcohol intake.

The Dietary Guidelines for Americans is a fact-based source of information that policymakers and healthcare professionals use to educate the general public about healthy eating. You can choose a specific diet to help you lose or gain weight. Changing a patient’s diet, or “going on a diet,” can alter the energy balance and increase or decrease the amount of fat stored in the body. The terms “healthy diet” and “diet for weight management” are often associated with each other as they promote healthy weight control. If a person is overweight or obese, switching to a diet and lifestyle that allows them to burn more calories than they consume can improve their overall health, possibly preventing diseases that are partially related to weight. including heart disease and diabetes. Conversely, if a person is underweight due to illness or malnutrition, he or she may change their diet to promote weight gain. Deliberate weight changes, while often beneficial, can be potentially harmful to the body if they occur too quickly. An involuntary rapid change in weight can be caused by the body’s response to certain medications or it can be a sign of serious medical problems, including thyroid problems and cancer, among other conditions.

An eating disorder is a mental disorder that interferes with normal food intake. This is due to abnormal eating habits and thoughts about food, which may include much more or less food than is necessary. Common eating disorders include anorexia nervosa, bulimia nervosa, and binge-eating disorder disorders. Eating disorders affect people of any gender, age, socioeconomic status and body size. Some cultures and religions have restrictions on what foods can be eaten. For example, only Kosher foods are permitted by Judaism, and Halal foods by Islam.

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