"Other important roles for Vitamin D come from the work of Carl Reich, MD, of Calgary. Insufficient Vitamin D prevents the ionization of calcium and thus makes calcium less able to play it's role in functions in the body. Reich found that this leads to cell energy starvation, causing fatigue, headaches, muscle cramps, allergies, gut problems and other problems. Over time, these can become more serious: asthma, hypertension, osteoporosis, arthritis, etc. Dr. Reich treated this cell energy starvation using diet and nutrients, including doses of Vitamin D of 4800 to 8800 IU (less for children), reducing the dose as patients improved. Using this program for over 30 years, Dr. Reich helped his patients recover from a variety of ailments. "

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