is taking vitamin b12 nasally and by injection Nasal Spray vs Injection: Benefits Dosage Explained Vitamin B12: Symptoms, Dosage &
Description
The number one symptom of Vitamin B12 deficiency is feeling tired and lethargic

See you on the inside!

Rotate sites systematically (abdomen at least 2 inches from navel, thighs, upper arms) to avoid lipohypertrophy [8]
That paper reported no genotoxic findings across an Ames test, a chromosomal aberration assay, and a bone micronucleus assay in rodent models
Side Effects of Vita B12 2500mcg Injection 1ml Vitamin B12 injections are generally safe and well-tolerated