Answered by Ustadh Tabraze Azam
Question: Assalam Alaikum ,
Although Glucose drips are injected through the arm or bloodstream it still provides nourishment. Would insulin injections nullify the fast?
Answer: Wa alaikum assalam wa rahmatullahi wa barakatuh,
I pray that you are in the best of health and faith, insha’Allah.
Injections do not invalidate the fast, irrespective of the substance they contain.
A drip takes the same ruling. The entrance of something through a recognized entry point invalidates the fast.
Please see: The Complete Guide to Fasting and: “Principles on What Invalidates the Fast”
And Allah alone gives success.
Checked & Approved by Faraz Rabbani