Eggs are not a grain. According to the revised USDA food pyramid, they are a protein.
The USDA sets the standards of the food pyramid and has edited it a few times since its inception. The best place for you to learn about the food pyramid would be at the USDA web site.
The avocado is considered a fruit, therefore part of the "fruit" section of the USDA Food Pyramid.
The US Department of Agriculture (USDA) developed the food pyramid.
The USDA (United States Department of Agriculture) changes the Food Pyramid regularly to keep up with today's standards. The Pyramid shows the balance of foods to eat to keep healthy. See the link below for a diagram of the current Food Pyramid by the USDA.
U.S. Department of Agriculture (USDA)
by the governments retarnation of stupidity for being to munipliative
The food pyramid is always changing, as the USDA is always making updates to it. The best way to keep track of the changes as well as staying on top of what to eat is by going to; mypyramid.gov. It provides you with the food guide, and a bunch of other useful information.
The first food pyramid was invented by the Swedish National Board of Health and Welfare in 1974. The most famous food pyramid is the one invented by the United States Department of Agriculture. It was first created in 1992, updated in 2005, and replaced in 2011. In 2011, a new feature known as the MyPlate diagram was created, which instead of a pyramid, features a plate.
United States Department of Agriculture (USDA)
The actual food pyramid was last updated in 2005. However, in 2011 it was completely replaced by the "My Plate" nutrition guide put forth by the USDA.
The first food pyramid from the USDA was released in 1992. In 1994 the Nutrition Labeling and Education act was passed, which required every food in grocery stores to have a nutrition label. This act made it easy to follow the food pyramid's recommendations.