Administering glucose does not break the fast, however, since it fulfills human nutritional needs to some extent, administering glucose without a valid excuse is Makruh. (Aham Masail/Vol:1/Pg:102)
Abul Kalam says: One night at dinner time, my mother placed curry and a burnt roti (bread) in front of my father.
I kept waiting for my father's reaction, thinking he might express his anger, but he ate his meal with absolute calmness and, at the same time, asked me how my day went at school....