eMedicine Specialties > Endocrinology > Metabolic Disorders
Vitamin A Deficiency: Treatment & Medication
Updated: Jun 16, 2008
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Treatment
Medical Care
- In the United States, VAD can easily be prevented through the consumption of foods recommended in the Diet subsection.
- Treatment for subclinical VAD includes the consumption of vitamin A–rich foods, such as liver, beef, chicken, eggs, fortified milk, carrots, mangoes, sweet potatoes, and leafy green vegetables.
- For VAD syndromes, treatment includes daily oral supplements, as follows:
- Children aged 3 years or younger - 600 mcg (2000 IU)
- Children aged 4-8 years - 900 mcg (3000 IU)
- Children aged 9-13 years - 1700 mcg (5665 IU)
- Children aged 14-18 years - 2800 mcg (9335 IU)
- All adults - 3000 mcg (10,000 IU)
- Therapeutic doses for severe disease include 60,000 mcg (200,000 IU), which has been shown to reduce child mortality rates by 35-70%.
Consultations
- Consult endocrinologists, gastroenterologists, ophthalmologists, nutritionists, infectious disease specialists, and dermatologists, as indicated.
Diet
- The Dietary Guidelines for Americans, from the US departments of Agriculture and Health and Human Services, recommend consumption of a variety of foods for a comprehensive nutrient intake.16 Vitamin A – rich foods include the following16,17 :
- Liver
- Beef
- Chicken
- Eggs
- Whole milk
- Fortified milk
- Carrots
- Mangoes
- Orange fruits
- Sweet potatoes
- Spinach, kale, and other green vegetables
- Eating at least 5 servings of fruits and vegetables per day is recommended in order to provide a comprehensive distribution of carotenoids.
- A variety of foods, such as breakfast cereals, pastries, breads, crackers, and cereal grain bars, are often fortified with 10-15% of the RDA of vitamin A.
Medication
The goals of pharmacotherapy are to reduce morbidity and to prevent complications.18
Vitamins
Essential for normal deoxyribonucleic acid (DNA) synthesis and the metabolism of proteins, carbohydrates, and fats. They may also work as cofactors used in aerobic cellular respiration.
Vitamin A (Aquasol A, Palmitate-A)
Cofactor in many biochemical processes.
Adult
3000 mcg (10,000 IU) PO qd
Severe disease: 60,000 mcg (200,000 IU) PO for at least 2 d
Pediatric
£ 3 years: 600 mcg (2000 IU) PO qd
4-8 years: 900 mcg (3000 IU) PO qd
9-13 years: 1700 mcg (5665 IU) PO qd
14-18 years: 2800 mcg (9335 IU) PO qd
Severe disease: 60,000 mcg (200,000 IU) PO for at least 2 d
Cholestyramine, neomycin, and mineral oil may decrease absorption
Documented hypersensitivity; hypervitaminosis A; pregnancy (if dose >800 mcg/d)
Pregnancy
A - Fetal risk not revealed in controlled studies in humans
Precautions
Risk of teratogenicity increases in pregnant women at doses >800 mcg/d (not recommended); parenteral vitamin A in infants of low birth weight may be associated with thrombocytopenia, renal dysfunction, hepatomegaly, cholestasis, ascites, hypotension, and metabolic acidosis (E-Ferol syndrome)
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| Overview: Vitamin A Deficiency |
| Differential Diagnoses & Workup: Vitamin A Deficiency |
Treatment & Medication: Vitamin A Deficiency |
| Follow-up: Vitamin A Deficiency |
| References |
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References
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Pazirandeh S, Burns DL. Overview of fat-soluble vitamins I. UpToDate. 2002.
Russell RM. Vitamin and trace mineral deficiency and excess. In: Braunwald E, Fauci A, Kasper D, et al, eds. Harrison's Principles of Internal Medicine. vol 1. 15th ed. New York, NY: McGraw-Hill; 2001:465-6.
Munoz EC, Rosado JL, Lopez P, et al. Iron and zinc supplementation improves indicators of vitamin A status of Mexican preschoolers. Am J Clin Nutr. Mar 2000;71(3):789-94. [Medline]. [Full Text].
Reddy V. History of the International Vitamin A Consultative Group 1975-2000. J Nutr. Sep 2002;132(9 Suppl):2852S-6S. [Medline]. [Full Text].
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Gungor S, Olmez A, Pinar Arikan Firat, et al. Serum retinol and beta-carotene levels in subacute sclerosing panencephalitis. J Child Neurol. Mar 2007;22(3):341-3. [Medline].
Rothman KJ, Moore LL, Singer MR, et al. Teratogenicity of high vitamin A intake. N Engl J Med. Nov 23 1995;333(21):1369-73. [Medline]. [Full Text].
Alaimo K, McDowell MA, Briefel RR, et al. Dietary intake of vitamins, minerals, and fiber of persons ages 2 months and over in the United States: Third National Health and Nutrition Examination Survey, Phase 1, 1988-91. Adv Data. Nov 14 1994;1-28. [Medline]. [Full Text].
Lee V, Ahmed F, Wada S, et al. Extent of vitamin A deficiency among rural pregnant women in Bangladesh. Public Health Nutr. Jun 12 2008;1-6. [Medline].
Al-Saleh I, El-Doush I, Billedo G. Age and gender-related reference values for serum dl-alpha-tocopherol and all-trans-retinol levels in Saudi population. Int J Vitam Nutr Res. Sep 2007;77(5):326-35. [Medline].
de Pee S, Dary O. Biochemical indicators of vitamin A deficiency: serum retinol and serum retinol binding protein. J Nutr. Sep 2002;132(9 Suppl):2895S-901S. [Medline]. [Full Text].
Weinman AR, Jorge SM, Martins AR, et al. Assessment of vitamin A nutritional status in newborn preterm infants. Nutrition. Jun 2007;23(6):454-60. [Medline].
Gorstein JL, Dary O, Pongtorn, et al. Feasibility of using retinol-binding protein from capillary blood specimens to estimate serum retinol concentrations and the prevalence of vitamin A deficiency in low-resource settings. Public Health Nutr. May 2008;11(5):513-20. [Medline].
Russell RM. The vitamin A spectrum: from deficiency to toxicity. Am J Clin Nutr. Apr 2000;71(4):878-84. [Medline]. [Full Text].
Dietary Guidelines for Americans, 2005. 6th ed. Department of Health and Human Services, Department of Agriculture; Jan 2005. [Full Text].
Dietary Supplement Fact Sheet: Vitamin A and Carotenoids. National Institutes of Health, Office of Dietary Supplements; Apr 23 2006. [Full Text].
Fletcher RH, Fairfield KM. Vitamin supplementation in disease prevention II. UpToDate. 2002.
Fairfield KM, Fletcher RH. Vitamins for chronic disease prevention in adults: scientific review. JAMA. Jun 19 2002;287(23):3116-26. [Medline]. [Full Text].
Willett WC, Hunter DJ. Vitamin A and cancers of the breast, large bowel, and prostate: epidemiologic evidence. Nutr Rev. Feb 1994;52(2 Pt 2):S53-9. [Medline].
Keywords
VAD, retinoic acid, retinol, beta carotene, beta-carotene, Aquasol A, Palmitate-A, Oleovitamin A, carotenoids, provitamin A, 11-cis -retinol, vision, dark adaptation, nyctalopia, retinol-binding protein, RBP, cellular retinol-binding protein, CRBP, cystic fibrosis, sprue, pancreatic insufficiency, inflammatory bowel disorder, IBD, inflammatory bowel disease, cholestasis, alcoholism, Bitot spots, dry skin, dry hair, pruritus, broken fingernails, keratomalacia, xerophthalmia, follicular hyperkeratosis, phrynoderma, vitamin deficiency, malnutrition, retinoids, retinoid deficiency, deficiency of vitamin A
Treatment & Medication: Vitamin A Deficiency