Vitamin B12 injections bypass the digestive tract and deliver cobalamin directly into muscle or fatty tissue, which is why healthcare providers often recommend them for people with pernicious anemia, malabsorption conditions, gastric bypass history, strict plant-based diets, or age-related B12 decline
Sanz-Cuesta T, Escortell-Mayor E, Cura-Gonzalez I et al (2020) Oral versus intramuscular administration of vitamin B12 for vitamin B12 deficiency in primary care: a pragmatic, randomized, non-inferiority clinical trial (OB12)
Briefly, a 24-well culture plate was coated with 200 l (9.1 mg/ml)/well Matrigel prepared from Engelbreth-Holm-Swarm mouse tumors (Corning, MA, USA) and allowed to stand for 30 min at 37 C to form a gel layer
Hormone clinic, O shot and P shot Clinic, Evox clinic
The meta-analysis of these trials included thousands of patients