The most effective place to inject insulin is over your abdomen (anterior abdominal wall) and followed by upper outer thighs and upper outer arms.
Also see : Why Abdomen is the Best Site for Insulin Injection?

The most effective place to inject insulin is over your abdomen (anterior abdominal wall) and followed by upper outer thighs and upper outer arms.
Also see : Why Abdomen is the Best Site for Insulin Injection?