Diet


In nutrition, the diet is the sum of food consumed by a person or other organism.Dietary habits are the habitual decisions an individual or culture makes when choosing what foods to eat. Although humans are omnivores, each culture holds some food preferences and some food taboos. Individual dietary choices may be more or less healthful. Proper nutrition requires the proper ingestion and equally important, the absorption of vitamins, minerals, and food energy in the form of carbohydrates, proteins, and fats. Dietary habits and choices play a significant role in health and mortality, and can also define cultures and play a role in religion.

Traditional diet

"Traditional diet" is the diets of native populations such as the Native Americans, Khoisan or Australian Aborigines. Often, to qualify for cultural cuisine, traditional diets include more organic farming and seasonal food according to food origins.

Religious and cultural dietary choices

Some cultures and religions have restrictions concerning what foods are acceptable in their diet. For example, only Kosher foods are permitted by Judaism, and Halal foods by Islam.

Diet and life outcome

A three-decade long study published in the British medical journal, The Lancet, found that Guatemalan men who had been well-fed soon after they were born earned almost 50% more in average salary than those who had not. The blind trial was performed by giving a high-nutrition supplement to some infants and a lower-nutrition supplement to others, with only the researchers knowing which infants received which supplements.
Individual dietary choices

Many people choose to forgo food from animal sources to varying degrees (vegetarianism, veganism, fruitarianism) for health reasons, or issues surrounding morality, or to reduce their personal impact on the environment. Raw foodism is another contemporary trend. These diets may require tuning or supplementation to meet ordinary nutritional needs.

Economic influence

In addition to culture, religion, and personal choices, diet is also influenced by economics. Throughout history and in contemporary life, poverty is often associated with the inability to afford meat, or with malnutrition.

Diets for weight management

A particular diet may be chosen to seek weight gain, weight loss, sports training, cardio-vascular health, avoidance of cancers, food allergies and for other reasons. Changing a subject's dietary intake, or "going on a diet", can change the energy balance and increase or decrease the amount of fat stored by the body. Some foods are specifically recommended, or even altered, for conformity to the requirements of a particular diet. These diets are often recommended in conjunction with exercise.

Eating disorders

An eating disorder is a mental disorder that interferes with normal food consumption. Eating disorders often affect people with a negative body image.

Food guide pyramid



The food guide pyramid (historical) known as the food pyramid, and formally titled the Improved American Food Guide Pyramid, was published by the USDA(United States Department of Agriculture) in 1992 to replace the earlier food groups classification system.
Grain group

The Grain Group is represented by a thick orange strip. Cereals, breads, pastas, crackers, and rice all fall under this categorization. Bread, cereal, rice, and pasta are grown from cereal crops. Grains supply food energy in the form of starch and carbohydrates. Breads made from refined ingredients are not as highly recommended as whole grains.

Vegetable group

A vegetable is a part of a plant consumed by humans that is generally savory (not sweet) and not considered a grain, fruit, nut, spice, or herb. For example, the stem, root, flower, etc. may be eaten as vegetables. Vegetables contain many vitamins and minerals; however, different vegetables contain different spreads, so it is important to eat a wide variety of types. For example, green vegetables typically contain vitamin A, dark orange and dark green vegetables contain vitamin C,and vegetables like broccoli and related plants contain iron and calcium. Vegetables are very low in fats and calories, but cooking can often add these.

Fruit group

In terms of food (rather than botany), fruits are the sweet-tasting seed-bearing parts of plants, or occasionally sweet parts of plants which do not bear seeds.
These include apples, oranges, plums, bananas, etc. Fruits are low in calories and fat and are a source of natural sugars, fiber and vitamins. Processing fruits when canning or making into juices unfortunately may add sugars and remove nutrients. The fruit food group is sometimes combined with the vegetable food group. It is best to consume 2-4 servings of fruit in a day.

Oil group

The oil group is represented by a thin yellow strip between the Dairy and Fruits Groups. Oils include cooking oils, fats and sweets, along with some good fats found in items like peanut butter and fish. As the group is represented by a thin strip, it implies that you should eat less of this group because if you eat too much it may cause diabetes, high blood pressure and even some cancers.

Dairy group

The Dairy group is represented by a medium-thick blue strip between the Oil and Meat groups. Dairy products are produced from the milk of mammals, most usually but not exclusively cattle. They include milk, yogurt and cheese. Milk and its derivative products are a rich source of the mineral calcium, but also provide protein, phosphorus, vitamin A, and vitamin D. However, many dairy products are high in saturated fat and cholesterol compared to vegetables, fruits and whole grains, which is why skimmed products are available as an alternative. For adults, 3 cups of dairy products are recommended per day.

Meat, Poultry, Fish, Dry Beans, Eggs, and Nuts group

Meat is the tissue - usually muscle - of an animal consumed by humans. Since most parts of many animals are edible, there are a vast variety of meats. Meat is a major source of protein, as well as iron, zinc, and vitamin B12. Meats, poultry, and fish include beef, chicken, pork, salmon, tuna, and shrimp, crab legs, eggs, Spices and Herbs are also in this Group.

Health
A healthy diet is one that is arrived at with the intent of improving or maintaining optimal health. This usually involves consuming 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, and is subject to an individual's genetic makeup, environment, and health. For around 20% of the human population, lack of food and malnutrition are the main impediments to healthy eating.Conversely, people in developed countries have the opposite problem; they are more concerned about obesity
Nutrition foods

The Food and Nutrition Service (FNS), an agency of the United States Department of Agriculture (USDA) was established on August 8, 1969. FNS is the federal agency responsible for administering the nation’s domestic nutrition assistance programs. It administers the programs through its headquarters (HQ) in Alexandria, VA; regional offices (ROs) in San Francisco, Denver, Dallas, Chicago, Atlanta, Boston, and Robbinsville (NJ); and field offices throughout the US. While its staff number among the USDA's fewest, its budget is by far the largest.

Nutrition assistance programs

In the United States, the lunches that are subsidized by the NSLP are nearly ubiquitous in public schools. The program has operated since 1946.

*Food Stamp Program (FSP)
*National School Lunch Program (NSLP)
*School Breakfast Program (SBP)
*Special Milk Program (SMP)
*Summer Food Service Program (SFSP)
*Special Supplemental Nutrition Program for Women, Infants and Children (WIC)
*Senior Farmers’ Market Nutrition Program (SFMNP)
*Farmers’ Market Nutrition Program (FMNP)
*Child and Adult Care Food Program (CACFP)
*Commodity Supplemental Food Program (CSFP)
*The Emergency Food Assistance Program (TEFAP)
*Food Distribution Program on Indian Reservations (FDPIR)
*Pacific Island Assistance Program
*Nutrition Assistance Block Grants, including Nutrition Assistance for Puerto Rico
*Fresh Fruit and Vegetable Program