Its stability-enhancing N-terminal modification allows for effective subcutaneous administration, and it is FDA-approved for HIV-related lipodystrophy
smaller barrels (0.3 mL) trade total volume for finer markings
Major sources include: Foods Rich in Vitamin B12 Vitamin B12 is naturally found primarily in animal-based foods, such as: Beef liver and pork liver (the most concentrated sources) Red meat, poultry, and fish Eggs, especially egg yolks Shellfish such as clams and oysters Fatty fish like salmon, tuna, and sardines Dairy products including cows milk, yogurt, and cheese For individuals who follow a vegetarian diet, Vitamin B12-fortified foods can be a helpful choice, such as fortified cereals or fortified soy milk
S2CID 206300763
However, human safety profiles are unknown , as these compounds have not undergone comprehensive clinical evaluation
Reference ranges differ between labs