PMID: 17703734
Injectable vitamin B12, which can treat significant deficiencies, may cause the following common side effects: More serious side effects of vitamin B12 injections can include: irregular heartbeat heart palpitations hives or a skin rash Vitamin B12 can cause very rare but serious allergic reactions, or anaphylaxis
or low potassium level - leg cramps, constipation, irregular heartbeats, fluttering in your chest, increased thirst or urination, numbness or tingling, muscle weakness or limp feeling
Other micronutrients including zinc, copper, and vitamin A contribute to tissue repair in various ways
Red blood cell formation - It helps build healthy red blood cells that carry oxygen to your muscles and brain
Vitamin B12, for example, helps in several ways, but if you dont get enough from your diet, could pills or injections be an option