Your concerns are real. Start with that so you don't dismiss them or feel guilty, even subconsciously, for being "overbearing". He could have a condition being aggravated by the bypass. A lot of people, male and female, gain weight after marriage. It is complicated. But if you're not gaining and he is, it is either an underlying health risk already manifesting, or a discipline issue that could lead to one. It doesn't mean he's uncaring or unsound mentally, or spoiled. Well, sometimes it can mean we're getting spoiled and are in total denial LOL but even that has its roots in real issues that we cannot manage easily or alone. My experience with men, my own husband included, is that you can have the most influence if he's oblivious to the changes being made, or the concern that is driving your "suggestions". For example, improve the quality of his diet every way you can slowly and quietly, before he really has time to notice the changes are for the better. Take his favorite foods and incorporate them into new menu ideas that are healthier, but hardly noticable. Like stir fry for example, make it often with brown rice and other variations, like use his favorite vegetables and meat cooked with little additives.(By the way, Melaleuca is expensive and requires a regular monthly purchase) He will resist subconsciously, we all do, just keep up the good habits without fail and with total confidence. Encourage self-help activities that will get him working on inner issues, like Men's Prayergroup or Marriage encounters. Have little brief discussions, but never let him see you stress over it. That will lead to more problems. Smile with your most reassuring smile. When a spouse is quietly unflinching, it does something very positive in the life of their mate. Get Midwest Center's Tape Series on Anxiety, he may be a "eat to relax" kind of guy. Just keep focusing on the positive, and get him into the doctor regularly. He could be developing problems from the surgery or other condition. One doctor doesn't always catch it, get a second opinion. Suggest quick trip to the mall, and oops, you have to take a trip to the other side for something you forgot. It's just tough love undercover, not deceit. Do it for him, we all need it sometimes. Remind yourself that you belong to each other and that you're not really overstepping just planning for longterm health. Ask him to drink more water, especially. And don't forget, if his bad cholesterol begins to rise, it with keep him craving bad things, as does bad sugars(Refer to the South Beach or similar plans for sugar control).