“Keri Glassman knows everything about nutrition! She's on my speed dial for diet and weight loss stories.” —Jessica Mehalic, Senior Editor, US Weekly

“Keri always wows me with her ability to make eating well seem more like a treat than a chore! The O2 Diet takes her weight-loss wisdom one step further by introducing you to the foods that will not only shrink your waistline, but will make your skin glow too!” —Michele Promaulayko, Editor-in-Chief of Women's Health

“THIS BOOK IS A MUST-READ!!!! Keri Glassman and her A-team are truly the most intelligent and effective nutrition experts in the business. As a longtime magazine editor, I have interviewed just about every nutritionist and reviewed dozens of healthy eating guides. When I first met Keri and her perennially charming team, I knew Keri's wisdom, passion, expertise and no-nonsense approach set her practice apart from all others. That is why I became a loyal client myself! They seamlessly weave cutting-edge nutrition science and human behavior into an accessible, holistic system that is tremendously effective! Keri's philosophy relies on a thoughtful integration of science and lifestyle and ensures that your entire life gets a wellness makeover, not just your dinner plate. When I heard about Keri's O2 Diet and ORAC, I knew she was on to something HUGE. This is the real deal – Keri presents helpful information in a foolproof guide. Once you pick up this easy-to-follow compendium, you will not be able to put it down. She and her team are at the forefront of nutrition and have navigated the grocery aisles and restaurants menus so you don't have to. Keri has identified ways to live your most nutritious life without a restrictive regimen – you'll drop the pounds while packing on many healthy years! ” —Polly Blitzer, Editor- in-Chief of BeautyBlitz.com

“I just finished reading The O2 Diet and I'm already ORAC obsessed! I can't put a piece of food in my mouth without thinking of its ORAC value. As an expert in the wellness space, it is rare to read about something completely innovative and applicable, but Keri Glassman has created novel eating guidelines that are easy to follow, and healthy for your mind, body (including skin) and soul - a rare combination! Keri's focus on what you SHOULD eat, rather than what you SHOULDN'T eat makes healthy eating fun and rewarding! The O2 Diet is very Vital Juice Approved! ” —Amanda Freeman, Co-founder, VitalJuice.com

“Finally a prescription for antioxidants! Keri Glassman expertly wraps up the science behind living longer into a diet anyone can follow! It's a recipe for good health!” —Holly Phillips, MD, Medical Contributor, CBS "The Early Show", Medical Correspondent, CBS2 News, New York