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Common signs include extreme tiredness, low energy, pins and needles, muscle weakness, disturbed vision, low mood, diffuse hair loss and even premature greying
Trout: 3 oz
That matters if you have trouble absorbing B12 from food or pills, which is more common than most people realize
2018 Aug 1;39(4):489-517
It's also important to let us know if you have any allergies (especially to cobalt or B12), or if you have Leber's disease, kidney problems, or are pregnant or nursing
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