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Illnesses Any illness or condition that affects the digestive system can result in a B12 deficiency because the vitamin is bound to the protein molecules in your food and is released and absorbed by the body during digestion
Things like caffeine stress, not drinking enough water, or lack of sleep often lead to these feelings
Warnings Patients with early Leber's disease (hereditary optic nerve atrophy) who were treated with cyanocobalamin suffered severe and swift optic atrophy
This product is sold exclusively for research and educational purposes
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