Function: Formation of body proteins, neurotransmitters, red blood cells; immunity
Sources: Meats, poultry, egg yolk, soy, peanuts, bananas, potatoes, whole grains, cauliflower
Optimal Intake: 10-25 mg
Deficiency Signs: Mood abnormalities, sleep problems, anemia, impairment of nerve function, eczema, cracking of the lips and the tongue, premenstrual syndrome, depression
Toxicity: Very high dosages can cause nerve symptoms-numbness and tingling.
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