From Wikipedia, the free encyclopedia. Magnesium oxide (Mg O), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of Mg O and consists of a lattice of Mg 2+ ions and O 2â ions held together by ionic bonding.
Today, the main ingredients of Marmite manufactured in the UK are glutamic acid-rich yeast extract, with lesser quantities of sodium chloride, vegetable extract, niacin, thiamine, spice extracts, riboflavin, folic acid and celery extracts, although the precise composition is a trade secret.maÊmit]), a French term for a large, covered earthenware or metal cooking pot. British Marmite was originally supplied in earthenware pots, but since the 1920s has been sold in glass jars shaped like the French cooking pot.
MarkPiovesan/iStock/Getty Images. While not commonly found in the United States, Marmite is a spread made from brewer's yeast that is popular in the United Kingdom. This salty paste has a devoted following in many parts of the globe, but others despise it because of its strong, meaty flavor.armite has a strong, very salty taste with a tangy, bitter bite. Due to the yeast content, the spread has a rich, savory flavor found in many fermented foods and mushrooms. Some vegetarians use it to add a meat-like flavor to dishes as it does not contain any animal-based ingredients.