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If you were B12-deficient, the first week often brings less fatigue and better workout tolerance
After having a B12 shot, a person should monitor for adverse symptoms and seek medical help if they experience: severe pain at the injection site mild diarrhea a swelling sensation in the body temporary itching of the skin In rare cases, a person may also be at risk of: pulmonary edema peripheral vascular thrombosis, which involves blood clots polycythemia vera, which is a type of blood cancer If anyone experiences difficulty breathing, hives, and swelling, they need emergency medical help
When your B12 levels are optimal, your body can efficiently convert food into glucose your main source of fuel
Be especially skeptical of the numbers in circulation
