Plants and iron-fortified foods contain nonheme iron only, whereas meat, seafood, and poultry contain both heme and nonheme iron [ 2 ]. Heme iron, which is formed when iron combines with protoporphyrin IX, contributes about 10% to 15% of total iron intakes in western populations [ 3-5 ].he richest sources of heme iron in the diet include lean meat and seafood [ 11 ]. Dietary sources of nonheme iron include nuts, beans, vegetables, and fortified grain products. In the United States, about half of dietary iron comes from bread, cereal, and other grain products [ 2, 3, 5 ].
There are about 8 million people in Switzerland. About 64% of the people speak German as their first language, in northern and central Switzerland. 19% of the people speak French as their first language, in the west of Switzerland. 8% of the people speak Italian, in the south of Switzerland. Only 1% of the people speak Romansh, in the southeastern part of Switzerland.
French is the native language of about 20% of the Swiss population, and is spoken by 50.4% of the population. French is also an official language of Luxembourg, Monaco, Andorra and Aosta Valley (Italy), while French dialects remain spoken by minorities on the Channel Islands.ccording to the U.S. Census Bureau (2011), French is the fourth most-spoken language in the United States after English, Spanish, and Chinese, when all forms of French are considered together and all dialects of Chinese are similarly combined.