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What are some results of vitamin deficiencies?

The following are some results of vitamin deficiencies:

Vitamin A: Night blindness, poor growth, reproduction problems, dry skin
Vitamin D: decreased bone mass, rickets
Vitamin E: (rare) low birth weight, problems absorbing fat
Vitamin K: (rare) problems with blood clotting
Vitamin B6: convulsions, depression, nausea, greasy, flaky skin
Folic Acid: impairs growth, anemia
Vitamin B12: anemia, fatigue, nerve damage (strict vegetarians are at risk)
Vitamin C: scurvy

Duyff RL. The American Dietetic Association’s Complete Food & Nutrition Guide. Minneapolis, MN: Chronimed Publishing; 1996.

(This answer provided for NATA by Loni L. Wiley, MS, ATC, LAT.)

Dr. David L. Katz, MD, MPH
Preventive Medicine
In today's world of fortified foods, vitamin deficiencies are less common than they used to be -- but shortages still exist. In this video, I will describe some of the problems that can result from vitamin shortfalls.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.