does b12 have to be injected into muscle Are Vitamin Shots Right for You? The B12 Shot: What Every

These schedules are based on the bodys ability to store B12 and are designed to be effective in preventing symptoms

Metabolic unpredictability: Simultaneously altering multiple metabolic pathways incretin signalling, glucagon activity, and NAD+ metabolism without clinical oversight introduces unpredictable physiological consequences

As one source explains, an insulin syringes primary function [is] to draw up and inject insulin subcutaneously (under the skin) to help manage blood sugar levels.

For systemic benefit, injection wins

mg to Units Conversion On a standard 100-unit insulin syringe, each "unit" equals 0.01 mL (so 100 units = 1 mL)