The large muscle mass in this area provides ample space for the injection and allows for optimal absorption of the vitamin
The richest natural sources include: Meat and poultry : Beef, lamb, pork, and chicken, particularly organ meats like liver and kidneys Fish and seafood : Salmon, trout, tuna, sardines, and shellfish such as clams and mussels Dairy products : Milk, cheese, and yoghurt provide moderate amounts of B12 Eggs : Particularly the yolk, which contains B12 in readily absorbable form For individuals following plant-based diets, fortified foods are essential sources of B12
Fresh, healthy red blood cells do a better job of carrying oxygen around, and that improved delivery can translate into more staying power
No human clinical trials exist
Can you take Vitamin B complex injections alongside other supplements