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Vitamin B12 Deficiency Since your body reserves some vitamin B12, a deficit may not manifest for several years
Researchers have found that supplementation with daily iron in women experiencing hair loss, resulted in only some women experiencing a modest increase in serum ferritin concentration
Unlike oral supplementswhich must pass through the harsh environment of the digestive tract, often losing up to 80% of their potencyvitamin shots guarantee 100% bioavailability
Bottom line: Its almost impossible to become toxic on vitamin B12 unless you have kidney issues
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