OK, here's my story.
About a year ago, I got a really bad stomach bug while on holiday in Mauritius and was never really the same in the digestion department after that. Basically became a high priest of the porcelain god -- making my offerings far too many times a day.
Got checked, inside and out, and was told there was no obvious reason for my troubles. Diagnosis was post-infectious IBS (irritable bowel syndrome). May go away, may not. Good luck.
And then I did have some. Our au pair was diagnosed with a hiatus hernia and recommended to follow a gluten-free diet as a result. Her main issues were with reflux rather than down the other end, but the gastroenterologist mentioned that cutting out wheat and other grains was often effective for people with both complaints, so I gave it a shot. And lo and behold, very quickly, no more IBS. Yay!
Anyway, this is where the story sidles toward relevance. As soon as I stopped eating grains, I started losing weight. I was around 115 kg (253 lbs) at the start and am under 105 kg (230 lbs) at the moment. Once I realized what was happening -- after 10 years or so of seeing the scale going only one direction -- I also cut out refined sugar just to see what would happen. Seems to be compounding the virtuous circle. I still eat rice and potatoes, so it's not a low-carb diet per se, and I still drink beer, as my stomach will tolerate one or two (but no more than that). May be because the barley is fermented, I don't know.
So what we've ended up with in our house is pretty close to the framework of the (somewhat-wankily-named) Perfect Health Diet, which is constituted thusly:
And it has definitely worked for us. My wife is at her lowest weight since grad school, the au pair who started it all is down nearly 50 lbs and I reckon I'll be around my ideal size, say 215 lbs at 6'7", in a couple of months. Hasn't been hard to implement either. Basically we just don't eat bread or pasta or pizza anymore, plus no soda and nothing out of a box. No particular portion control and I substitute extra red wine for all foregone brews, as a matter of principle.
That's all I got. YMMV etc. but have to say I really enjoy feeling less fat and less slow. Good luck to all of you!