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The USDA's "Basic 7" food groups from 1943 to 1956. In 1943, during World War II, the USDA introduced a nutrition guide promoting the "Basic 7" food groups to help maintain nutritional standards under wartime food rationing. [5] [6] The Basic 7 food groups were: Green and yellow vegetables (some raw; some cooked, frozen or canned)
A food pyramid is a representation of the optimal number of servings to be eaten each day from each of the basic food groups. [2] The first pyramid was published in Sweden in 1974. [ 3 ] [ 4 ] [ 5 ] The 1992 pyramid introduced by the United States Department of Agriculture (USDA) was called the "Food Guide Pyramid" or "Eating Right Pyramid".
The USDA promoted eight basic food groups prior to 1943, then seven basic food groups until 1956, then four food groups. A food pyramid was introduced in 1992, then MyPyramid in 2005, followed by MyPlate in 2011. Dietary guidelines were introduced in 2015 and slated to be rereleased every five years.
Ventifacts have also been discovered on Mars, where such sharp immobile rocks have caused significant damage to the wheels of the Curiosity rover. [4] An example of a Martian ventifact was named Jake Matijevic. By analyzing its shape, it was possible to reconstruct the main wind direction which sculpted the rock. [5]
MyPlate is the latest nutrition guide from the USDA. The USDA's first dietary guidelines were published in 1894 by Wilbur Olin Atwater as a farmers' bulletin. [4] Since then, the USDA has provided a variety of nutrition guides for the public, including the Basic 7 (1943–1956), the Basic Four (1956–1992), the Food Guide Pyramid (1992–2005), and MyPyramid (2005–2013).
MyPyramid miniposter with sample food group recommendations. In a departure from its predecessor the food guide pyramid, no foods are pictured on the MyPyramid logo itself. Instead, colored vertical bands represent different food groups. Additionally, the logo emphasizes physical activity by showing a person climbing steps on the side of the ...
Water and fiber have low energy densities, or calories, while fat is the most energy-dense component. [3] Some inorganic (non-food) elements are also essential for plant and animal functioning. [7] Human food can be classified in various ways, either by related content or by how it is processed. [8] The number and composition of food groups can
Turkey's Ministry of Health uses the Basic Food Groups (Turkish: Temel Besin Grupları), a four-part division of milk and dairy; meat, eggs, fish, legumes and seeds; vegetables and fruit; and bread and cereal. Each food group is accompanied by bullet points, such as serving recommendations or advice to eat more raw vegetables and whole grains. [34]