Jenny Tschiesche

Jenny Tschiesche is a #1 Sunday Times bestselling author and a BANT-registered nutritionist with over 20 years of experience translating nutritional science into practical kitchen strategies. Known as the founder of "Lunchbox Doctor," she has worked with elite sporting bodies like BBC Sport and major corporations to simplify healthy eating for busy families and athletes. Author of seven books—including her Sunday Times bestseller The Air-Fryer Cookbook and the 2026 release The Ultimate High-Fibre Handbook—Jenny is a leading voice against ultra-processed foods (UPFs). Her philosophy centers on using modern tools like air fryers and pressure cookers to make scratch-cooking accessible and time-efficient.

Raised in a galley kitchen as one of seven children, Jenny’s grit is rooted in her background as a national-level field hockey player and her personal journey through major surgery for a genetic liver condition. She advocates for an inclusive, non-judgmental approach, teaching that listening to your body is more vital than following social media trends.