vitamin b12 by intramuscular injection rather than orally Efficacy of different routes of supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis Vitamin B12 Injections vs. Oral
Description
Vitamin b12 is crucial for brain functioning where, sadly, a deficiency can lead to anxiety and depression

Unlike most other nutrients, the human body cannot absorb Vitamin D from food but rather absorbs it from the suns ultraviolet (UV) rays through the skin

For a quick summary of common shot side effects see this guide: B12 shot side effects

From UndisclosedComments about Cyanocobalamin Injection, 1000 mcg/mL 1mL Viallove the 1 ml vials

A B12 shot can help alleviate some of these symptoms

Elevated GH can affect insulin sensitivity, so this is worth tracking for patients with any metabolic history
