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By increasing your metabolism and energy, B12 does more than just burn calories while you do your day-to-day activities
Hydroxocobalamin Cyanocobalamin and hydroxocobalamin are the two main types of Vitamin B12 used in injections
[20] Pernicious anemia may be present without a person experiencing symptoms at first, over time, feeling tired and weak, lightheadedness, dizziness, headaches, rapid or irregular heartbeat, breathlessness, glossitis (a sore red tongue), poor ability to exercise, low blood pressure, cold hands and feet, pale or yellow skin, easy bruising and bleeding, low-grade fevers, tremor, cold sensitivity, chest pain, upset stomach, nausea, loss of appetite, heartburn, weight loss, diarrhea, constipation, severe joint pain, feeling abnormal sensations including tingling or numbness to the fingers and toes ( pins and needles ), and tinnitus, may occur
Source: Awosemo et al., Journal of Pharmaceutical and Biomedical Analysis, 2021
