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Thiamine, also known as thiamin and vitamin B 1, is a vitamin – an essential micronutrient for humans and animals. [ 1 ] [ 3 ] [ 4 ] It is found in food and commercially synthesized to be a dietary supplement or medication . [ 1 ]
Vitamin B 10: para-aminobenzoic acid (pABA or PABA), a chemical component of the folate molecule produced by plants and bacteria, and found in many foods. [ 40 ] [ 41 ] It is best known as a UV -blocking sunscreen applied to the skin, and is sometimes taken orally for certain medical conditions.
Vitamin B 12 is the only vitamin or nutrient not available from plant sources. The Food Fortification Initiative lists countries which have mandatory fortification programs for vitamins folic acid, niacin, vitamin A and vitamins B 1 , B 2 and B 12 .
Robert Runnels Williams (February 16, 1886 – October 2, 1965) was an American chemist, known for being the first to chemically fully characterize and then synthesize thiamine (vitamin B 1). He first isolated thiamine in 1933, and synthesized it in 1935, reporting this in 1936.
In biology, taxonomic rank (which some authors prefer to call nomenclatural rank [1] because ranking is part of nomenclature rather than taxonomy proper, according to some definitions of these terms) is the relative or absolute level of a group of organisms (a taxon) in a hierarchy that reflects evolutionary
Thiamine deficiency is a medical condition of low levels of thiamine (vitamin B 1). [1] A severe and chronic form is known as beriberi. [1] [7] The name beriberi was possibly borrowed in the 18th century from the Sinhalese phrase බැරි බැරි (bæri bæri, “I cannot, I cannot”), owing to the weakness caused by the condition.
A vitamer is any of the related forms in which some vitamin occurs. Each vitamer (/ ˈ v aɪ t ə m ər /) of a particular vitamin is a compound that performs the functions of that vitamin and prevents the symptoms of deficiency of the vitamin.
Opson and sitos were Classical Greek food groups, mainly used for moral education, to teach sophrosyne. Mitahara, a concept of moderate diet found in early-first-millennium Sanskrit texts, categorizes food into groups and recommends eating a variety of healthy foods, while avoiding the unhealthy ones; it also considers foods to have emotional and moral effects.