But, being careful is key, mainly for those at high risk. Vitamin B12 is key for making myelin, the fatty stuff around nerve fibers
Contraindications Given the limited safety data, conservative contraindications would include pregnancy or plans to become pregnant, breastfeeding, age under 18, severe liver or kidney disease, and any condition requiring medications with unknown interaction potential
NHS website
Knowing which medical conditions need B12 injections is key to treating them well
Losing excess weight and cutting down accumulated body fat is not only relevant for aesthetic body shape but being overweight and obese accounts for several cardiovascular and cardiometabolic disorders such as hypertension, coronary artery disease, diabetes mellitus, etc