The low glycemic carb thing only works in heathy populations. It does nothing to significantly improve metabolic syndrome. There is a mystical assumption that there are nutritional benefits from grains. That's only true relative to the normal crap diet. Read "The Paleo Solution" by Rob Wolfe or "The Primal Blueprint" by Mark Sisson. Implementing either approach (They're very similar) will involve eliminating grains and dairy (2 or the 4 foods groups), at least initially, and will involve increasing animal foods and vegetables. Your genetics don't determine your health. Genetics increase liklihoods of issues that may arise but your environment, mainly food, contribute most to your health.
Side effects from Statins cause muscle problems (liver too) and those side effects become very obvious to someone who is tuned into using their muscles. That's why it's common on fitness forums. That's the last I'll say on it as I know it's upsetting when people contradict their doctor.
I'm wondering if Gemfribrozil falls into the statin catagory, as I stopped taking it about 2 or 3 months ago, and I'm always having problems with muscle injuries. I lost a few lbs. (13), and my tris were 300 with gem., and are now 300 without using nician, but the good to bad col. wasn't the best, so I'm taking extra fish oil, and trying to (am losing) lose more weight. And now just for fun I came down with psoriais and was told it goes to joints. Love it.
Speaking of injuries, I was doing a very careful (bad back) 3 sets of 120lb bench, 140 curls, 240 (the weider only goes to 240) shrug, and after all the wonderful injuries Im doing 70 bench, 60 curls, 80 shrugs out of fear of hurting myself again, and I'm getting weaker. Ain't it great? I work out to get weaker.