- Food guide pyramid
A food guide pyramid is a triangular or pyramid-shaped nutrition guide divided into sections to show the recommended intake for each food group. The first food pyramid was published in Sweden in 1974. The most widely known food pyramid was introduced by the United States Department of Agriculture in 1992, was updated in 2005, and then replaced in 2011. Over 25 other countries and organizations have also published food pyramids.
- 1 Origin
- 2 Food Pyramid published by the World Health Organization and Food and Agriculture Organization Joint Expert Consultation
- 3 USDA food pyramid
- 4 See also
- 5 References
- 6 External links
Amid high food prices in 1972, Sweden's National Board of Health and Welfare developed the idea of "basic foods" that were both cheap and nutritious, and "supplemental foods" that added nutrition missing from the basic foods. Anna Britt Agnsäter, head of the test kitchen at KF, a consumer co-op that worked with the Board, held a lecture the next year on how to illustrate these food groups. Attendee Fjalar Clemes suggested a triangle displaying basic foods at the base. Agnsäter developed the idea into the first food pyramid, which was introduced to the public in 1974 in KF's Vi magazine. The pyramid was divided into basic foods at the base, including milk, cheese, margarine, bread, cereals and potatoes; a large section of supplemental vegetables and fruit; and an apex of supplemental meat, fish and eggs. The pyramid competed with the National Board's "dietary circle," which KF saw as problematic for resembling a cake divided into seven slices, and for not indicating how much of each food should be eaten. While the Board distanced itself from the pyramid, KF continued to promote it, and food pyramids were developed in other Scandinavian countries, as well as West Germany, Japan and Sri Lanka. The United States later developed its first food pyramid in 1992.
Food Pyramid published by the World Health Organization and Food and Agriculture Organization Joint Expert Consultation
The World Health Organization, in conjunction with the FAO, published guidelines that can effectively be represented in a food pyramid relating to objectives to prevent obesity, chronic diseases and dental caries based on meta-analysis  though they represent it as a table rather than a "pyramid". The structure is similar in some respects to the USDA food pyramid, but there are clear distinctions between types of fats, and a more dramatic distinction where carbohydrates are split on the basis of free sugars versus sugars in their natural form. Some food substances are singled out due to the impact on the target issues the "pyramid" is meant to address, while in a later revision, some recommendations are omitted since they follow automatically from other recommendations while other sub-categories are added. The reports quoted here explain that where there is no stated lower limit in the table below, there is no requirement for that nutrient in the diet.
Dietary factor 1989 WHO Study Group recommendations 2002 Joint WHO/FAO Expert Consultation recommendations Total fat 15 – 30% 15 – 30% Saturated fatty acids (SFAs) 0–10% <10% Polyunsaturated fatty acids (PUFAs) 3–7% 6–10% n-6 PUFAs 5–8% n-3 PUFAs 1–2% Trans fatty acids <1% Monounsaturated fatty acids (MUFAs) By difference Total carbohydrate 55–75% 55–75% Free sugars 0–10% <10% Complex carbohydrate 50–70% No recommendation Protein 10–15% 10–15% Cholesterol 0-300 mg/day <300 mg/da Sodium chloride (Sodium) <6 g/day <5 g/day (<2 g/day) Fruits and vegetables ≥400g/day ≥400g/day Pulses, nuts and seeds ≥30 g/day (as part of the 400 g of fruit and vegetables) Total dietary fibre 27–40g/day From foods NSP 16–24g/day From foods
The representation as a pyramid is not precise, and involves variations due to the alternative percentages of different elements, but the main sections can be represented. Note that the percentages expressed are by energy (joules or calories) and not by weight, hence free sugars, for example, since they are, by definition, more refined, should be significantly lower than 10% of intake when measured in food compared to other carbohydrates (those still in their natural form).
USDA food pyramid
The USDA food pyramid was created in 1992 and divided into six horizontal sections containing depictions of foods from each section's food group. It was updated in 2005 with colorful vertical wedges replacing the horizontal sections and renamed MyPyramid. MyPyramid was often displayed with the food images absent, creating a more abstract design.
In an effort to restructure food nutrition guidelines, the USDA rolled out its new MyPlate program in June 2011. My Plate is divided into four slightly different sized quadrants, with fruits and vegetables taking up half the space, and grains and protein making up the other half. The vegetables and grains portions are the largest of the four.
Carbohydrates are a source of energy that can be transformed into glucose, the form of sugar that is transported and used by the body, more quickly than proteins or fats. A diet too high in carbohydrates can upset the delicate balance of a body's blood sugar level, resulting in fluctuations in energy and mood that leave one feeling irritated and tired.
A vegetable is a part of a plant consumed by humans that is generally savory but is not sweet. A vegetable is 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.
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 may add sugars and remove nutrients. The fruit food group is sometimes combined with the vegetable food group. Note that many foods considered fruits in botany because they bear seeds are not considered fruits in cuisine because they lack the characteristic sweet taste, e.g., tomatos or avocados.
The food pyramid advises that fats be consumed sparingly. Butter and oils are examples of fats. Healthy sources of fat can be found in fish, nuts, and certain fruits and vegetables, such as avocados.
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 dietary 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, three cups of dairy products are recommended per day.
Meat and beans
Meat is the tissue – usually muscle – of an animal consumed by humans. Since most parts of many animals are edible, there is 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, eggs.
The meat group is one of the major compacted food groups in the food guide pyramid. Many of the same nutrients found in meat can also be found in foods like eggs, dry beans, and nuts, such foods are typically placed in the same category as meats, as meat alternatives. These include tofu, products that resemble meat or fish but are made with soy, eggs, and cheeses. For those who do not consume meat or animal products (see Vegetarianism, veganism and Taboo food and drink), meat analogs, tofu, beans, lentils, chick peas, nuts and other high-protein vegetables are also included in this group. The food guide pyramid suggests that adults eat 2–3 servings per day. One serving of meat is 4 oz (110 g), about the size of a deck of cards.
Many nutritional experts, like Harvard nutritionist Dr. Walter Willett, believe the 1992 pyramid does not reflect the latest research on dietetics. Certain dietary choices that have been linked to heart disease, such as three cups of whole milk and an 8 oz (230 g). serving of hamburger daily, were technically permitted under the pyramid. The pyramid also lacked differentiation within the protein-rich group ("Meat, Poultry, Fish, Dry Beans, Eggs, and Nuts").
Some of the recommended quantities for the different types of food in the old pyramid have also come under criticism for lack of clarity. For instance, the pyramid recommends two to three servings from the protein-rich group, but this is intended to be a maximum. The pyramid recommends two to four fruit servings, but this is intended to be the minimum.
The fats group as a whole have been put at the tip of the pyramid, under the direction to eat as little as possible, which is largely problematic. Under the guide, one would assume to avoid fats and fatty foods, which can lead to health problems. For one, fat is essential in a person's general sustainability. Unsaturated fats from a natural source can actually aid in weight loss, reduce heart disease risk, lower blood sugar, and even lower cholesterol. These fats can be found in olive oil, nuts, pesto, seafood (including fish, shrimp, squid, and krill among many more) and avocados. Also, they are very long sustaining, and help keep blood sugar at a steady level. On top of that, these fats help brain function as well.
Several books have recently claimed that food and agricultural associations exert undue political power on the USDA. Food industries, such as milk companies, have been accused of influencing the United States Department of Agriculture into making the colored spots on the newly created food pyramid larger for their particular product. The milk section has been claimed to be the easiest to see out of the six sections of the pyramid, making individuals believe that more milk should be consumed on a daily basis compared to the others. Furthermore, the inclusion of milk as a group unto itself implies that is an essential part of a healthy diet, despite the many people who are lactose intolerant and choose to abstain from dairy, and a number of cultures that have historically consumed little if any dairy products with the exception of breast-feeding.
The Harvard School of Public Health proposes the Healthy eating pyramid, which includes calcium and multi-vitamin supplements as well as moderate amounts of alcohol, as an alternative to the Food Guide Pyramid.
Vegan or vegetarian versions of the nutritional food pyramid.
Many observers[who?] believe that the Harvard pyramid follows the results of nutrition studies published in peer-reviewed scientific journals more closely.
In their book Fantastic Voyage: Live Long Enough to Live Forever, published in 2004, Ray Kurzweil and Terry Grossman M.D., point out that the guidelines provided in the Harvard Pyramid fail to distinguish between healthy and unhealthy oils. In addition, whole-grain foods are given more priority than vegetables, which should not be the case, as vegetables have a lower glycemic load. Other observations are that fish should be given a higher priority due to its high omega-3 content, and that high fat dairy products should be excluded. As an alternative, the authors postulate a new food pyramid, emphasising low glycemic-load vegetables, healthy fats, such as avocados, nuts and seeds, lean animal protein, fish, and extra virgin olive oil.
The University of Michigan Integrative Medicine’s Healing Foods Pyramid emphasizes plant-based choices, variety and balance. It includes sections for seasonings and water as well as healthy fats.
- History of USDA nutrition guides
- List of nutrition guides
- The Food Balance Wheel alternate interpretation of the Food Guide Pyramid
- Vegetarian Diet Pyramid
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- Tufts Researchers Update Their Food Guide Pyramid for Older Adults
- Modified MyPyramid for Older Adults
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