is b12 injections as good as the pills Vitamin Injections: What You Need To Know Oral B12 vs. B12 Injections:

Because receiving vitamin D shots cuts out any absorption issues, its a highly recommended form of vitamin therapy for people who are at risk for a deficiency or have conditions that could benefit from more vitamin D intake

However, absorption decreases significantly as doses increase, and individuals with compromised gut health may absorb only 1-2%

Who Needs Vitamin B12 Treatment and What Are the Symptoms of Low Vitamin B12

retatrutide adds glucagon receptor activity to both

Vitamin B12 in fortified foods and dietary supplements is already in free form (is not bound to anything) and is, therefore, more easily absorbed