Blood tests, like serum B12 levels and complete blood counts, are key to making these decisions
Common side effects (may affect up to 1 in 10 people): * Pain, redness, or swelling at the injection site * Nausea * Headache Uncommon side effects (may affect up to 1 in 100 people): * Diarrhea * Dizziness * Allergic reactions such as skin rash, itching, or hives Rare side effects (may affect up to 1 in 1,000 people): * Severe allergic reaction (anaphylaxis) with symptoms like difficulty breathing, swelling of the face or throat, and a drop in blood pressure
poultry: 1 ml
Strict vegans and vegetarians are at elevated risk because B12 is found almost exclusively in animal-derived foods
This direct method can raise B12 levels more quickly
Moreover, everybody is unique, so it is best to consult your doctor before using any weight-loss technique