A B12 deficiency can lead to anemia, which reduces the oxygen-carrying capacity of the blood, resulting in fatigue, weakness, and shortness of breath
Injectable Lipolysis (Kybella): A brief stinging sensation, followed by tenderness
[1] In moderate deficiencies, feeling tired, feeling faint, mouth ulcers, rapid breathing, upset stomach, pallor, hair loss, decreased ability to think and joint pain and the beginning of neurological symptoms, including abnormal sensations such as, numbness and tingling, and tinnitus may occur
Is there a certificate of analysis
doi:10.1016/j.autrev.2011.01.009
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