I’m a short person. I’m also sedentary and classified as overweight but not obese. As such, my TDEE is around 1600-1700 calories. So, to lose weight at the pace I’d like, I have to restrict myself to 1200 calories a day.
My partner is taller, fatter and has more muscle mass than me. He’s talked about wanting to lose weight to get healthier, but when it comes down to it he won’t do anything. Which is baffling to me, because his TDEE is high enough that he could eat waaay more than me and still lose weight.
Ugh. It’s frustrating.
You said it yourself, he is taller, fatter and has more muscle mass. Of course he has to eat more than you because he also burns more calories than you.
If you would eat till you are full, and he would eat the same amount, he would still need more. And not because he’s a fatty fatty fatso but because more mass needs more calories.