The OP needs to ask him why he is eating like he does.
At least one or two of those people must have had a hand in their DH/DW going to rack and ruin
So surprised at comments like this.
My DH is very obese. His diet is similar to the OP. Breakfast will be whatever's in the house. He can snack on share bags of crisps. If we go to McD's it's a large meal plus two small burgers. Takeaways are a large pizza, sides of chicken and chips.
It devastates me to watch him eating like that, knowing that he's going to die young. Knowing that I'm going to spend my later years alone, most likely. Knowing that there is every chance I'll wake up one morning and find him lying next to me, cold. Knowing that there's a chance he may not be around to see DD grow up.
And then there's this assumption that OP just needs to start by asking her DH why he eats like that. Putting the responsibility on her.
OP's DH is ridiculous for claiming discrimination and trying to put the blame on other people, but I doubt this will be his wake-up call either. And OP is not the one responsible for this, any more than her DH's colleagues are.
There is little to do, as the partner of someone obese, in my experience. If I don't comment on his eating habits, he'll just carry on as he is. If I do comment, he gets upset and then I'm 'putting pressure on him' so it's not going to work. I've broken down sobbing because I was scared for a future without him, both emotionally and financially, because he's too big to even get life insurance and I do minimum wage work and would struggle to even keep a roof over the head of myself and DD is something happened to him, and though that was apparently the motivation he needed, we're here many months later with him bigger than ever and continuing to eat to success. And I can make suggestions, but they're often knocked back.
Pinning the blame on the partners of obese people is shocking, to me. I love DH more than anything, and trust me that if I had the magic solution as his partner then I would have tried it long ago.