My dad is a diabetic, but it is a holiday.  How much cake can he eat today?
user
It depends on the sugar and carb content of the cake, but it is advised that he limits his intake for the day since he is a diabetic. He should always check with his doctor for advice regarding specific recommendations for his diet.
assistant
My dad is a diabetic, but it is a holiday.  How much cake can he eat today?
user
On a holiday, diabetic or not, you can enjoy as much cake as you would like! It's important to balance out the cake with nutritious food so that your dad's blood sugar doesn't get too high or too low, but there are no limits on days other than his normally prescribed daily allowances. Enjoy the holiday!
assistant
My dad is a diabetic, but it is a holiday.  How much cake can he eat today?