b12 injection or oral Vitamin vs Injection​ B12 Injections vs Oral Supplements:

Needle gauge matters

Fabulous Great product, arrived in a timely manner

Vitamin B12 deficiency is more common in people who follow a plant based or vegetarian diet, in people who do not produce intrinsic factor, or those where the intrinsic factor is not able to mix with the food such as after bariatric surgery

The most common side effects are [2, 3, 4]: Gastrointestinal side effects, like nausea, vomiting, diarrhoea, constipation, indigestion or heartburn Decreased appetite and/or thirstmake sure you drink plenty of water to stay hydrated and eat nutritious, balanced meals

45 46 47 In these situations, expert opinion suggests that clinicians consider discussing with their patients a therapeutic trial of B 12 injections