It can also result in anemia, which leads to fatigue, weakness, and shortness of breath
Quick Take 1: Vegans and vegetarians can get B12 from plant sources, but have to consume a lot of these foods daily, including organically grown cress, shitake mushrooms, nori seaweed, and fermented vegetables
Shedding may increase temporarily in the first 4-6 weeks as dormant follicles enter a new growth cycle
doi:10.1017/S0029665107005873
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Vitamin B12 deficiencies are characterized by: Muscle weakness or fatigue Digestive problems Nervous system disorders Heart damage Most people get enough vitamin B12 just by eating a diet that includes animal products