The first-ever weight-loss plan specifically designed to stop—and reverse—age-related weight gain and muscle loss, while shrinking your belly, extending your life, and creating your healthiest self at mid-life and beyond.

You don’t have to gain weight as you age. That’s the simple yet revolutionary promise of The Whole Body Reset, which uncovers why standard diet and exercise advice stops working for us as we approach midlife—and reveals how simple changes to the way we eat can stop, and even reverse, age-related weight gain and muscle loss.

The Whole Body Reset presents stunning new evidence about the power of “protein timing” for people at midlife—research that blows away the current government guidelines and changes the way people in their mid-forties and older should think about food. The Whole Body Reset explains in simple, inspiring, and entertaining terms exactly how our bodies change with age, and how eating to accommodate those changes can make us respond to exercise as if we were twenty to thirty years younger.

Developed by AARP, tested by a panel of more than 100 AARP employees, and approved by an international board of doctors, nutrition, and fitness experts, The Whole Body Reset doesn’t use diet phases, eating windows, calorie restriction, or other trendy gimmicks. Its six simple secrets and scores of recipes are family-friendly and easy to follow, designed for real people living in the real world. An easy dining guide even shows how to follow this program in popular restaurants from McDonald’s to Starbucks to Olive Garden. And best of all: It works!

Stephen Perrine has crafted more than two dozen New York Times bestsellers as an author, editor, or publisher. As Executive Editor for AARP the Magazine and the AARP Bulletin, he oversees health and wellness coverage reaching more than 38 million readers. He is the creator, editor, and publisher of the Eat This, Not That! book series, and coauthor, with Danica Patrick, of Pretty Intense. Perrine is the cocreator of Better Man, a nationally syndicated health and wellness TV show for men. The former editor-in-chief of Best Life and editorial creative director of Men’s Health, he has appeared as a nutrition expert on programs including Dr. Oz, Today, Good Morning America, and the 700 Club. He lives in New York.

A nutritionist and exercise scientist, Heidi Skolnik has appeared on the Today show, Live! With Kelly and Ryan, and the Food Network. She oversees Performance Nutrition at the School of American Ballet and The Julliard School. She previously served as the team nutritionist for the New York Giants, New York Knicks, and New York Mets. She sits on the advisory board of the National Menopause Foundation and served as a board member for the National Osteoporosis Foundation for ten years. She is the author of Grill Yourself Skinny and coauthor of Nutrient Timing for Peak Performance and The Reverse Diet. She lives in New Jersey.

AARP, with 38 million members, is the nation’s largest nonprofit, nonpartisan organization dedicated to empowering people to choose how they live as they age.