Feeling constantly tired or low on energy
[18] FDA identified limitations in characterization data, potential immunogenicity concerns for injectable use, limited information for proposed routes, lack of established effectiveness for obesity, and insufficient long-term safety information
Document daily dose and site rotation to maintain consistency
Pregnancy, breastfeeding, kidney disease, severe anemia, and neurologic symptoms may require closer follow-up
Both B12 vitamins and injections can help treat a B12 deficiency, although your body will absorb injections much quicker and more easily
Dietary intake: Vegetarians, vegans, and those who limit their daily consumption of animal products may have to consume more vitamin B12, as it is mainly present in foods of animal origin