<human>: Could you distill the essence of the text into 1-3 sentences?

*Background: I live with my father who cooks the majority of my family's meals as he is a retired chef and prefers to eat good food. I have an older brother and an older sister (in addition to my parents). All of my family, except me, are to some degree are overweight. I am a recreational bodybuilder.*

My father is grotesquely overweight. His body is strange in that it chooses to allocate most of its fat to his abdominal area. The result? He may as well be pregnant. Im not trying to be funny and this is not an exaggeration. It literally looks like hes carrying a baby. 

Its glaringly obvious that he has appalling eating habits. I exercise religiously, am almost 40 years younger than him and he eats more than me. He also drinks 4-5 cups of wine every night without fail. This is enough to ensure he is drunk for at least a third of each day. 

Recently, hes expressed his concerns about his weight and the implications on his health (my family has a history of heart problems). I have responded by suggesting that he cut back on his eating habits as a start and begin some kind of physical activity. 

This has persisted for several nights until finally tonight, he lost patience and told me that he grew up so poor that hes learned to appreciate every meal he eats. He says he'll never change, that its impossible for him to lose weight (wtf?) and implied that im an ingrate/a child for being so picky. 

The rest of my family agrees with me in private but will not say anything to him about it. 

I am at the end of my rope. Dont get me wrong. Im not saying he shouldnt lead his own life and nor am i ignorant of the fact that i am biased due to my own. But theres a line he crossed several thousand miles back and now hes a walking freak show. Its a disgrace to men everywhere and I will call it what it is. 

Should i give up on him? While ultimately it will be his choice on whether to turn it around, I feel like I owe loyalty to him as his son to remind him of every opportunity to do so.
<bot>: Father is heavily overweight and an alcoholic. He is concerned for his health and I give him tips to turn it around which both annoys and offends him. Im getting tired of being the matyr.