There are a million flash-in-the-pan diets out there these days, although certainly not in Japan -- hell, their bicameral legislature elected under a parallel voting system has been around since 1889! Giving you a diet you can stick to, mainly because it conjures up images of saber tooth tigers: The Primal Plan.
Hatched by two local CrossFit-loving chicks who took the positives of the Paleo Diet (which basically encourages eating like our club-wielding ancestors) and made it even more delicious (bacon!), Primal enlisted a dietitian and local chefs who did stints at China Grill/Zuma/Loews to whip up home-delivered gourmet grub, and count among their clients a famous NFL star whose name they won’t reveal, so clearly it’s Billy Joe Hobert. Your three nuke-able meals for the day're delivered in one shot, with the revolving menu avail in three different portion-controlled levels including the "extreme athlete"-tailored Lumberjack, which dishes hefty portions of ropa vieja omelets, sausage & shrimp jambalaya, a bacon jalapeno fish burger, and a ground-beef-packed "Caveman" pie, which was presumably removed from the face of the guy who greenlit their TV series. Along with that, you also get two daily snacks that range from pecan-stuffed dates wrapped in turkey bacon, to almond-/cranberry-/coconut-stuffed protein bars coined "Everything But The Kitchen Sink", because those things are way too high in iron. And sink.
Primal's other two delivery levels include the The Skinny, which plates the smallest portions, and the Lean Mean, for those who just want to maintain their "Average Joe", a group our legislature clearly doesn't care about.