I eat a "traditional foods" type diet. My weight isn't much different than before (not overweight, not underweight, although I'm still working on about 10 lbs I'd like to shed from this last pregnancy), but one interesting thing I noticed about 6 months after I started eating this way is that my skin doesn't sunburn nearly as easily and if it does get a little too red it heals very quickly and rarely peels. Previously, I ate a rather low-fat diet, then transitioned to organic, whole-foods veggie, not as low in fat as before but very little saturated fat. When I switched to a more traditional foods approach and added back in very high quality saturated fats and omega-3s (from pasture-raised animal sources, coconut oil, cod liver oil), I noticed the change in susceptibility to sunburn. It wasn't a huge problem before, but I would burn rather badly if I stayed in the sun for too long, it would take many days to heal and stop hurting and I'd peel like a snake. Now, sometimes I'll still burn a little in the early spring if I stay out in the sun for many hours, but even then it is usually healed and tan by the next day and if it peels it's only a little bit. (BTW, I think sun exposure is very important for health, and that the routine use of sunscreen is damaging in many ways. I only use "natural" sunscreens if we'll be out in the sun for a long time, and usually only in the early spring when we're pale from winter. After we have a tan, I don't put it on myself or my kids unless we'll be many hours in the direct sun. The kids don't burn easily, either. We all have rather light skin when it's not tanned.)
Also, my blood sugar is much more stable now, I used to have terrible afternoon crashes and would get really crabby with dizziness and nausea if I went too long without eating (as in, completely preoccupied, I-must-eat-now-don't-look-at-me-get-out-of-my-way hungry).