which includes the following:

I am a diabetic and must take an insulin injection approximately 30 minutes before meals.
What can I do during the blessed month of Ramadan? Would the insulin injections break my fast if I take them before the sunset prayers?
 

 

The opinion for fatwa is that injections, whether medicinal or nutritional, do not invalidate the fast. This is because the injected substance does not fall under the ruling on substances reaching the stomach through a naturally open orifice.

The ruling

There is no objection to taking insulin injections during the fasting hours of Ramadan and your fast is valid by the will of God the Almighty.
God the Almighty knows best.