are b12 injections more effective than tablets vs Tablets: What You Need to Know B12 Injections vs Pills: Richmond's

Declarations Competing Interests The authors declare no competing interests

Injections are made with thin needles into one of these areas of the body

[2] Age and overall health status also play important roles

Vitamin B12 is a water-soluble nutrient, which means it has an exceptionally high safety profile

its administered via injections or capsules in clinical settings.[4] It enhances fat burning, energy, insulin sensitivity, muscle preservation, and repair, while indirectly boosting NAD+ by slowing depletion.[5][23][24] Its membrane-permeable nature allows efficient cellular entry, making it suitable for therapeutic use