The popular "energy doctor" further explores how chronic fatigue sabotages vitality. In the sixth entry in the Paradox series, Gundry continues sharing useful applications for better living through optimal health and wellness choices. With the same amiable delivery found in previous books, the author articulates the physiological epidemic of chronic fatigue, a condition plaguing many of the clinical patients he cites as examples, and the kind of "everyday tiredness" affecting millions every day. He describes key direct sources of these physical and mental "energy disruptors," which include rampant inflammation, "the stress and anxiety of the pandemic," overreliance on prescription medication, an imbalanced gut microbiome, and, perhaps most importantly, a diet lacking in nutrients necessary to maintain optimal energy levels. Gundry, now in his "seventh decade," believes tiredness shouldn't be considered an inevitable byproduct of modern life but a warning sign from the body that something is lacking. Gundry reiterates his goal throughout the book: He wants to help people reclaim their lost energy through a variety of habit alterations, beginning with modest dietary changes like increasing the intake of soluble fiber or embarking on more drastic adaptations like calorie restrictions and periodic "fasting windows." Though this information is timely and undeniably motivating, the author's central discussion on cellular biology and mitochondrial gridlock may leave some readers in the weeds. More accessible, however, are sections on the methods for mitigating fatigue, especially through a comprehensively mapped six-week eating program that, should one undertake its often radical recommendations, should "recharge your battery" and curb nagging listlessness. This flexible biodynamic strategy includes fiber-forward food choices, regular exercise regimens, and avoiding the "frankenfoods loaded with frankenfats." Gundry's crisply written, knowledgeable guidebook is an encouraging nudge to readers to investigate ways to achieve and retain their energy and productivity potentials. Practical, applicable advice on how to conquer fatigue and maximize energy. Copyright (c) Kirkus Reviews, used with permission.