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How is vitamin B12 deficiency is diagnosed

Glutathione levels have not been measured in all foods but seem to be widespread in fruits and vegetables

However, in diets based on cereals such as wheat and maize, lysine is usually the first limiting amino acid, and its deficiency directly limits the utilization efficiency of other amino acids

As shown in Table 1, only one of 20 lines of evidence was related only to the prenatal period

doi: 10.1001/jama.2012.113905

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