Vitamins: deficiency and overdosing

Reserve capacity of some vitamins

  RESERVE TIME DEPOSIT LOCATIONS VITAMIN A 1-2 years liver VITAMIN B1 4-10 days muscle, liver, brain VITAMIN B2 2-6 weeks skeletal muscles, liver VITAMIN B3 2-6 weeks liver VITAMIN B6 2-6 weeks muscle, liver, brain VITAMIN B9
(folic acid) 3-4 months liver VITAMIN B12 3-5 years liver C VITAMIN 2-6 weeks brain, kidney, adrenal gland, liver

Some Vitamin Deficiency Symptoms

VITAMIN A Night blindness, atypical epithelial cornification, growth disturbance VITAMIN D Rickets, osteomalacia (growth disturbance and ossification) VITAMIN E In adults disorders of muscle metabolism and vascular permeability; hemolytic anemia in children VITAMIN K Delayed coagulation, spontaneous anemias VITAMIN B1 Beriberi, polyneuritis, cardiac hypertrophy, CNS disorders VITAMIN B2 Growth arrest, skin diseases, photosensitivity VITAMIN B3 Pellagra, photodermatitis, paraesthesia VITAMIN B5 CNS disorders VITAMIN B6 Dermatitis, polyneuritis, muscle spasms VITAMIN B9 Hemolytic and megaloblastic anemia VITAMIN B12 Pernicious anemia, funicular myelosis VITAMIN H Dermatitis C VITAMIN Scurvy, connective tissue disorders

Toxic Dose and Symptoms of Overdosing of Some Vitamins

  Toxic dose (daily) Manifestations of vitamin overdose VITAMIN A 35 mg Skin, bone and mucous membrane alterations; headache, anemia, euphoria VITAMIN D 500 mcg mobilization of calcium from bone deposits, central nervous system and kidney disorders VITAMIN K ? Anemia in premature births and some cases of collapsed patients after intravenous injections VITAMIN B1 ? Also in this case there have been cases of collapse due to intravenous injections VITAMIN B3 3-4 g (?) Gastric and intestinal disorders, visual disturbances and skin alterations C VITAMIN 5 g Diarrhea, oxalate kidney stones

Other articles on "Vitamins: deficiency and overdosing"

1. Functions of vitamins
2. Vitamins: excess and deficiency