Per the diet/exercise conversation, I've done quite a bit of the TNT Plan / Metabolic Diet plan over the years and it works amazingly.
The Slow-Carb, Low GI thing is excellent and easy maintenance.
All has been in conjunction with full body workouts. See Pavel's RKC kettlebell plan. Excellent for reasonable muscle building, tone, health and fat loss. Not great for massive hypertrophy, but that's not what I'm after.
Right now:
I generally do about a 12-18 hour intermittent fast per day. I generally stop eating around 8-10 at night. Start eating at noon-ish or so every day. Depends on what time I want to work out, as I don't like working out on an empty stomach. When I stop my fast, and throughout the early afternoons most days, I'll have a couple of mugs of bone broth that my wife makes from scratch from the carcasses of the animals I harvest here on the old homestead. Along with that, I'll have a couple of protein shakes.
I'll eat pretty much whatever I want in the evening until I shut it down for the night's fast.
Workout is usually double-kettlebell cleans/presses. Kettlebell lawnmowers or bent over rows. Heavy double-kettlebell swings. I'll work in some kettlebell goblet squats on occasions. I do this three times a week, usually Mon, Wed, Fri. On off days I may do some lighter kettlebell work like Turkish Getups, bend presses, etc... If I'm not feeling like kettlebells, I have a set of heavy resistance bands that I'll do similar workouts with. (When my arthritis is in heavy flair-up, it may be my imagination, but I feel like the resistance bands are easier on my joints. Also, it's much easier to pack the bands for travel than the kettlebells.)
Each workout takes about 30 minutes right here at home. (No need for a gym membership or seeing dudes duck-lip posing for selfies in the locker room.)
Works well. I don't feel like I am missing out on anything. I no longer try to stay at a super low body fat anymore, but it keeps me fitter than most guys I know 25 years younger than me.