can b12 injections interfere with your inr test Vitamin Test: Purpose, Procedure, Normal Range & Results Interpretation Vitamin B12 Injections vs. Supplements:
Description
All B12 shots shipped from my office come with ice packs and instructions for refrigeration upon arrival

So if you have any of the below symptoms, you most likely need B12

Whats more, 15 grams is shown to be even more effective than 40 grams of whey
Nature Medicine 21(8):887-894

Read more- Why a Balanced Diet Matters: Importance, Benefits, and a Practical Diet Chart Can Vitamin B12 Deficiency Be Prevented

Good sources are meats like beef, liver, and chicken