Table 2: Nutrients associated with the determination of an AG.

Factor Name Sources Role Disease related to the deficiency
Vitamin B2 Riboflavin vegetables, yeast, milk Factor involved in oxidation-reduction reactions. Normochromic normocytic anemia
Vitamin B3 Niacin meat, beer yeast, cereals It is involved particularly in the DNA repair process, in the production of steroid hormones and is necessary for cellular oxidation-reduction reactions. Pellagra
Vitamin B6 Pyridoxin meat, vegetables It is a cofactor in several enzymatic reactions involving the metabolism of amino acids, glucose and lipids. Pellagra (indirectly)
Vitamin B9 Folic acid kidney, liver, green leafy vegetables, legumes, eggs Its principal biological role is related to the synthesis of DNA and RNA and in the prevention of genetic alterations. Megaloblastic anemia
Vitamin B12 Cobalamin meat, milk, eggs It is involved in the cells metabolism with several functions such as DNA synthesis, regulatory functions of the nervous system or in the amino acid metabolism. Pernicious anemia
Iron Iron meat, vegetables It carries oxygen in the hemoglobin, in the myoglobin and is also involved in several enzymatic reactions. Iron-deficiency anemia
Zinc Zinc Animal-sourced foods and some vegetables It is involved in various biological reactions in the human body, from cell growth to normal immune function to wound healing. Different physiological alterations

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