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Garza A, et al
[6] [3] [10] A mild deficiency may not cause any discernible symptoms, but moderate deficiency can cause various symptoms, such as feeling tired, lightheadedness, headaches, cold intolerance, pale skin, sore tongue, upset stomach, loss of appetite, hair and skin color changes, numbness or tingling (pins and needles) of the fingers and toes, and tinnitus, and vision, cognitive or psychological problems
Power outage protocol: An unopened fridge holds 2 to 8 C for about 4 hours with the door closed
Animal studies show 15-25% increases in muscle mass over 4-6 weeks at doses of 50-150 mcg/kg/day
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