Does anyone else have a spouse that eats like shit?

Health has always been important to me and I like to think I have a very balanced diet. My husband though, a professional man in his 30s, eats like a 15 year old boy. He would survive on Pizza Bites, frozen burritos, and chips every day if it were his choice. The only reason he eats vegetables is because I put them into meals. He doesn’t eat fruit at all. This morning he woke up and ate pepperoni slices for breakfast. I offered to make him some avocado toast with egg and he said “gross, no.” I used to not care as much, but he’s turning 34 this year and I’m just starting to worry for his health. Any ideas? I do the grocery shopping every week and I buy healthy food but he will go after work himself and get himself what he wants, so it’s kinda pointless. I’ve tried talking to him about it but he just says “I’ve eaten like this all my life and I’m fine.”

Oh... he’s not overweight btw. He’s actually very fit because his job is very physical. (Military)