For the night he was able to intake 110 + 310 + 215 = <<110+310+215=635>>635 calories
For breakfast and lunch, he was able to intake 560 + 780 = <<560+780=1340>>1340 calories
So, for the entire day Voldemort was able to intake 1340 + 635 = <<1340+635=1975>>1975 calories
Therefore, he can still intake 2500 - 1975 = <<525=525>>525 calories.
#### 525