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Find our presenters with a last name search! Use the dropdown below to search for a presenter based on the first letter of their last name.

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Stephen de Wit

Masters of Public Health, PhD

A board certified sexologist, Stephen started as a sexual health counselor and now travels internationally speaking about sexual empowerment. As an educator, coach, and consultant, he believes that people should live a sexually empowered life free from guilt, shame, and fear. Stephen is featured regularly in national newspapers and on TV providing relevant, thought-provoking sex education and information, helping people take an honest look at their sex lives and transform what isn't working.

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Gillian Mandich

Gillian is completing her PhD in health and rehabilitation science, specializing in health promotion. She's a yoga and Yoga Tune Up® teacher, TV host and community producer of Gillian Mandich: Cooking Adventures, co-host of the Holistic Health Diary podcast and TV show, and guest health host on the Home Shopping Network (HSN). Gillian is also the creator, producer, and host of Health Science Radio on 94.9 CHRW, and writes for numerous print and online media.

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Tosca Reno

New York Times Best Selling author, Founder of the Eat Clean® Revolution, NTP, PT, B.Ed., B.Sc.

A fitness model, motivational speaker, and Oxygen and Clean Eating columnist, Tosca is the best-selling author of “Your Best Body Now, The Eat-Clean Diet® series,” and star of her own reality TV show, and The Start Here Diet. At 40, she transformed her overweight and unfulfilled self into a strong, fit woman by eating clean. For over a decade she’s been helping people lose weight and get healthy with her no-nonsense, friendly, compassionate approach.