vitamin deficiency

Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to vitamin deficiency: Vitamins, Vitamin D deficiency, Vitamin B12 deficiency

vitamin deficiency

a state or condition resulting from the lack of or inability to use one or more vitamins. The symptoms and manifestations of each deficiency vary, depending on the specific function of the vitamin in promoting growth and development and maintaining body health.


Chronic brain failure, chronic brain syndrome, chronic organic brain syndrome, cortical and subcortical dementia, organic mental disorder, presbyophrenia, senility Neurology A general term for a diffuse irreversible condition of slow onset seen in older Pts, due to dysfunction of cerebral hemispheres; it is an end stage of mental deterioration, and is characterized by a loss of cognitive capacity, leading to ↓ social &/or occupational activity Prevalence Age-linked–affects ± 10.5% of those 80-85; 12.6-47.2% ≥ 85 Etiology 47% Vascular-type–potentially treatable; 44% Alzheimer's type Clinical ↓ mental ability, memory loss, often with emotional disturbances, personality changes Imaging MRI, PET, SPECT DiffDx Alzheimer's disease, multi-infarct–vascular dementia, Pick's disease, diffuse Lewy disease, Wernicke-Korsakoff syndrome, frontal lobe-type dementia, progressive supranuclear palsy, progressive subcortical gliosis, corticobasilar degeneration; other causes of dementia include alcohol, schizophrenia, subdural hematoma, normal pressure hydrocephalus, vitamin B12 deficiency and repeated trauma–'punch-drunk' syndrome, torture victims. See Dialysis dementia, Lewy body dementia, Multiinfarct dementia, Pseudodementia, Vascular dementia.
Dementia, treatable causes of
Endocrine & metabolic disease Thyroid or parathyroid disease, pituitary/adrenal dysfunction, hepatic encephalopathy, Wilson's disease, chronic renal failure
Infections Cryptococcal meningitis, neurosyphilis
Intracranial disorders Hydrocephalic dementia, tumors
Vasculitis SLE, periarteritis nodosa, temporal arteritis
Vitamin deficiency Thiamin, nicotinic acid, folic acid, vitamin B12
Others Drugs and/or toxins, heart failure, 'respiratory' encephalopathy, sarcoidosis, functional psychiatric disorders

vi·ta·min de·fi·cien·cy

(vī'tă-min dĕ-fish'ĕn-sē)
Low levels of essential vitamins that could lead to disease.

Patient discussion about vitamin deficiency

Q. Recently I came to know after a test that I am vitamin D deficient so how much vitamin D should I take? I am 26 yrs old and I have fibromyalgia. Recently I came to know after a test that I am vitamin D deficient so how much vitamin D should I take?

A. what is a normal level of vitamin d for a 65 yr old woman?

Q. Can regular exercise lead to vitamin deficiency? I am regular with my exercises every day. I don’t like to miss on my exercise. But I do miss on my food. I always take a healthy and good diet. But I fear of my vitamins and energy getting drained due to exercise. Can regular exercise lead to vitamin deficiency?

A. Yes, as I know you supplement your diet with vitamin C. This is reduced when you exercise extensively. And its recovery helps in muscle formation. Excessive body heat and sweat loss during the exercise can reduce the blood plasma levels of vitamin C. Have balanced diet along with plenty of fruits and vegetables. Drink 8-10 glasses or more of water every day.

More discussions about vitamin deficiency
References in periodicals archive ?
In this case, the mother elected to feed her child commercial infant formula, which corrected the vitamin deficiency.
The doctor said I had a vitamin deficiency and that my bone was practically decaying.
Tests then revealed that, as well as being anaemic, Johnson also had a vitamin deficiency which had wreaked further havoc with her performance.
Also, because the incidence of vitamin deficiency increases with age, routine screening should be considered in all patients over the age of 50 (Dharmarajan & Norkus, 2001).
In addition, the elderly and those who avoid all animal products are at higher risk of vitamin deficiency.
Systemic causes of delayed eruption include hormonal problems, vitamin deficiency, and certain developmental disturbances and syndromes that affect some or all of the teeth.
The assault is helped by vitamin deficiency, a drop in temperature, and less choice of healthy fruit and veg.
In our society, vitamin toxicity is much more of a threat than vitamin deficiency.
Vitamin deficiency diseases are quite rare in Pakistan as is evident from the hospital sickness returns, so the large scale use of vitamins is generally a misuse.