I didn't read your responses, but let's get things in perspective and face the important aspects of the issue.
Granted, looks are important (to ALL of us, not just to men). Health is another biggie. Habits, attitudes, emotions, all have a part. Love is the biggest thing of all.
Now, God made men to get their satisfaction as a person from their job/work. He made women to get their fulfillment from their husbands. (I know this doesn't seem fair, but it IS how it is, and all we can do is go with it). Most men DON'T fulfill their part in making us feel validated, affirmed, cherished, and even loved. A lot of women let themselves become doormats and subservients to an unhealthy degree.
It's all about balance. You need things in your life that bring you satisfaction apart from your husband (and kids), but you also need to make him feel like a man (they have very sensitive egos, hence their [false] 'fronts' of being all in control of their emotions and full of self-confidence. We build fortresses around our weaknesses, not our strengths).
Concentrate on doing/saying things that make him feel more 'manly' and valiant. This is the opposite of human nature, but it works (I've been married 34 years and I'm still not good at it, but I KNOW it's what's right & I'm working on it!) Making him feel more masculine and heroic will bring out his chivalry to you, no matter what you look like! Remember things that attracted you to him in the first place and tell him 'he's still got it'! LOL
For your own good, though, just change a few little habits to eat more healthily. Drink lots of water (we're often thirsty instead of hungry, and sweet drinks -- diet drinks or otherwise -- just don't quench thirst like water does). Eat a piece of fruit instead of candy or other sweets. Munch on a veggie instead of chips. Cook 'from scratch' instead of prepared foods. (Takes a little more time, but is cheaper AND healthier).
Were you physically/sexually molested as a child? I've heard that this is very often the cause of many women's weight issues. If this is the case, maybe see a minister or therapist about that -- the real issue.
May God bless and keep you and your marriage strong!
P.S. I actually went back & read your responses, and you got some really good advice!