okay to do b12 injection after exercise Mike O'Hearn -Should You Inject Vitamin B12 Injection Training –
Description
Age-related factors include reduced gastric acid production (achlorhydria) in older adults, which impairs B12 liberation from food
The advantage: customization and often lower cost

You are over 70 or have a weakened immune system, increasing the risk of complications
Geneva: WHO, 2011

Nutrients, 6(5), 18611873

These findings establish the mechanistic basis for the compound and provide proof of concept for its metabolic effects
