You are a nurse, or so your name indicates. You know how long that food (any food) stays present in your body.
I have heard another nurse say about 15 minutes. Was she right?
As to the presence of Jesus after the consecrated host or wine is digested — only Jesus knows.
Jesus told His Body of Believers - HIS CHURCH - "I will never leave nor forsake you".
Something that is foreign to Catholicism - God's Word. They dabble in God's Word for some sort of credibility but they lack it big time and prove it with their man made teachings.
Catholicism - where worship isn't worship and where remembrance isn't remembrance.