You might be low in vitamin B12, a nutrient your body needs to keep your brain sharp, your energy steady, and your nerves healthy
A: Many clients feel a mild boost within 2448 hours, with more noticeable improvements in energy and focus over 13 weeks
Many physicians choose to treat B12 deficiency with B12 shots because injections avoid the gastrointestinal tract entirely
There are no major side effects reported, though patients can experience diarrhea and swelling or redness at the injection site
Within 48 hours after injection of 100 or 1,000 mcg of vitamin B12, 50 to 98% of the injected dose may appear in the urine
The appropriate choice depends on individual health goals, risk factors, contraindications, and preferences regarding the balance between potential benefits and side effect profiles