Natural Factors Vitamin B6 - 100 mg - Involved in more bodily functions than almost any other single nutrient, Vitamin B6 intake and maintenance effects both physical and mental health. B6 is beneficial as a mild diuretic, reducing symptoms of premenstrual syndrome and menopause, and may prevent formation of oxalate kidney stones. It is also a regulator of bodily fluids by maintaining the sodium and potassium balance, is necessary for the production of hydrochloric acid and the absorption of fats and proteins. Requirements of B6 increase when high protein diets are consumed. Vitamin B6 also promotes the formation of red blood cells, and is necessary for a healthy nervous system and optimal brain functioning. Amongst many possible signs of Vitamin B6 deficiency are: anemia, skin problems, fatigue, arthritis, weak memory and carpal tunnel syndrome.