I think this is why Mormonism has never really taken hold in the South. It's more a religion for austere, bland people.
As an aside, the reason the South has the highest obesity rate is because there's so much good food down here, and life is lived to the fullest. Why eat tofu and seaweed and live to be 95, when you can have red beans and rice, pork ribs, catfish, gumbo, biscuits in a pan, corn bread and black eyed peas, country ham, fried chicken, watermelon, sweet potato pie, (very) sweet tea, etc. Sure, you kick over from a heart attack at 55, but so what? We're going to heaven anyway, and most health nuts get alzheimers.
LOL! I agree, and I think that's also one of the things that made Romney look wierd and out of touch. They looked like they were trying too hard and not really living their lives, but adopting a model. An ex-Mormon friend of mine once said that in Mormonism, there was no room for anybody who didn't fit that image, and if you deviated at all, they ostracized you (and your family, in many cases).
Heck, even the hard-shell Baptists in the South are more colorful and lively than that, and as you say, they eat a lot better!
My Mormon friend also said that he had an image that the gate of Heaven was sort of like a party and he was terrified that St Peter would identify him as a Mormon and say, "A Mormon? Why, here you go...put on this garment....the Koolaid and cookies are in that room"...while everybody else was out there dressed to the nines, chowing down and having a really great time. Granted, I don't think he necessarily had the right idea of Heaven, but you get the general drift.