Getting toned, lean, and strong doesn’t revolve around dubious “biohacks” for supercharging muscle growth, melting belly fat, or optimizing hormones. It doesn’t require dietary strategies like intermittent fasting and keto, exercise techniques like muscle confusion and functional training, or esoteric pills and powders like collagen protein and exogenous ketones. Instead, the real “secret sauce” of the fitness elite can be summed up like this: They control their calorie and protein intake. They mostly eat nutritious foods. They work out a few hours per week, and mostly to gain muscle and strength . In other words, the passport to the body you’ve always wanted is in the fundamentals, not the fringes. The devil’s in the details, however, because there are a few correct and many incorrect ways of executing those strategies. It’s like making music—just knowing that the process amounts to using notes to create pleasing harmonies, melodies, and rhythms isn’t e...