Cut the calories and lift the weights—but in exactly the right ways—to get a muscular, athletic body, argues this second edition of a guide to dieting and exercise. Lee (The Essential Guide to Sports Nutrition and Bodybuilding, 2018, etc.) starts with the insight that losing weight is a matter of burning more calories than people consume. But while it’s “really as simple as that,” this practice is far from straightforward. Once readers have adopted a diet that puts them in a calorie deficit—more burned than eaten—they have to get the right balance of carbohydrates, proteins, and fats, the author asserts, as well as micronutrients, from vitamin A to selenium. And he points out the vexing ups and downs of dieting. As people lose weight, their metabolisms slow, making it harder to burn calories—Lee suggests periodic diet breaks and “re-feeds” to kick the metabolism back up a notch—and they face weight-loss plateaus, water-weight fluctuations, bloating, fatigue, and cravings. The author then analyzes the other half of the complex equation, building muscle through weight lifting. He distinguishes the different types of muscle fibers and the various exercise regimens to train them, using low-weight, high-rep lifts for endurance and high-weight, low-rep lifts for size and strength. Then he delves into the byzantine interactions between diet and exercise. Weight lifting burns carbs but not much fat, so Lee recommends a cycling diet of high carbs on gym days followed by high fat on jogging days. And growing new muscle requires a calorie surplus, which means additional fat gain, thus necessitating, in the author’s scheme, larger cycles in which people cut fat on a diet, then eat more to bulk up on muscle, then diet again to shrink the fat so as to reveal the muscle definition they want to show off. So there’s a lot to learn, ponder, and calculate in the author’s system; it’s not a cookie-cutter approach, and readers need to do some work and a little arithmetic in applying it. Fortunately, Lee makes this fairly easy with clear, step-by-step instructions and planning aids. He shows readers how to find their “maintenance” calorie intake and figure out how many calories they need to cut to reach an appropriate deficit along with procedures to reckon the amount of protein—1 gram per pound per day when dieting, a little more for bulking—carbs, and fat in their diets. Superplants packed with micronutrients—hail kale—are discussed along with bodybuilding nutritional supplements. (The author recommends whey protein, creatine phosphate, and yohimbine.) Lee provides weekly weight lifting schedules and routines for men and women, specifying everything from the number of sets of Bulgarian split squats and butt-blasters to the minutes of rest in between reps; templates for tracking calories and exercises; dozens of inspirational color photographs of magnificently toned, ripped, and cut gym rats; and even suggestions for a workout playlist. There’s a massive amount of information here, but the author manages to keep it well organized, lucid, and readable. He boils the material down into bullet-pointed insights, convenient tables, cut-and-dried formulas, easy-to-use rules, and aphorisms—“The longer it takes to lose the fat, the longer it takes to put it back on”—that are both sensible and pithy. A clear, detailed road map to getting in shape for serious fitness enthusiasts.