Bua is round now

Bua is 2.9 years old and very round. Vet says 2 kg over ideal, which is like 8 kg on a human if you think about it. So we are going on a diet. Plan: half the food, two walks in the evening, zero table scraps (I am trying). He does not understand. He keeps looking at the fridge like it owes him something. Our condo lift is slow so we take the stairs, at least that part is working.