Vitamins Flashcards
Thiamin (B1)
Water soluble
Combines with Phos to make TPP necessary for macronutrient metabolism
Deficiency in alcoholics (inadequate intake and impaired absorption)
Niacin (B3)
Water soluble
Related to serotonin because tryptophan is a precursor
Deficiency (“pellegra”) = 3Ds = dermatitis, diarrhea, dementia
Riboflavin (B2)
Water soluble
Closely related to niacin in energy metabolism
Pyridoxine (B6)
Water soluble
Amino acid metabolism
Hemoglobin synthesis
Folate/Folic Acid (B9)
Water soluble
Formation/maturation RBC and WBC
Role in cell division (embryogenesis)
Increased folate can mask B12 deficiency
Cobalamin (B12)
Water soluble
Coenzyme in DNA metabolism, necessary for cell growth/division in Nervous System, GI Tract, and bone marrow
Deficiency=pernicious anemia
Biotin (B7)
Water soluble
Energy metabolism (fat, glycogen)
Can be made in gut
Pantothenic Acid (B5)
Water soluble
Part of Acetyl Coa
Vitamin C (Ascorbic Acid)
Water soluble
Enhances iron absorption
Antioxidant
Vitamin A
Fat soluble
Wound healing, immune function, vision
Deficiency: night blindness
Cartenoids
Vitamin K
Fat soluble
Blood clotting
factor 2 “prothrombin”,factors 7, 9, 10
Vitamin E (Tocopherol)
Fat soluble
Antioxidant in tissues
Vitamin D (calciferol)
Fat soluble
Works with Ca and Phos for healthy bones and teeth
D3 (active form) synthesized in kidney