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.
Marmite is New Zealand's original yeast spread thatâs been helping Kiwi's better their game since 1910. Marmite has long been valued as an excellent source of folate, a good source of B vitamins, a source of iron and low in fat.armite is New Zealand's original yeast spread thatâs been helping Kiwi's better their game since 1910. Marmite has long been valued as an excellent source of folate, a good source of B vitamins, a source of iron and low in fat.