The Science Of Sugar: Effects on the brain, cravings and addiction

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Sugar is often discussed as a moral issue, a lack of willpower, or something we simply need to “cut out.” The science tells a very different story. This talk explores how sugar interacts with the brain’s reward system, why cravings can feel intense and repetitive, and why some people experience sugar as addictive. We’ll look at what dopamine really does, how modern ultra-processed diets amplify reward signals, and why blood sugar swings can drive hunger and food noise.

We’ll also look beyond the brain to explore the gut–brain axis. Emerging research shows that the microbiome plays a meaningful role in appetite regulation, cravings, mood, and stress responses, all of which shape our relationship with sugar. Grounded in high-quality research and real-world experience, in this session, BANT Registered Nutritionist Sarah Osborne offers a compassionate, evidence-based lens on sugar that moves beyond blame and restriction. You’ll leave with a clearer understanding of your biology and environment, and practical ways to manage cravings without fear, shame, or extremes.

Workshop highlights:

• Explore the intricacies of how sugar interacts biologically with your body and brain
• Discuss the latest scientific research into sugar, nutrition and mental health
• Understand cravings, reward systems and appetite regulation
• Learn practical tips to develop a good relationship with sugar and manage cravings without shame

Speaker bio:

Sarah Osborne is an award-winning nutritionist, emotional eating specialist, and ICF ADHD Advanced Coach. She is the founder of So Nutrition— a leading UK nutrition practice dedicated to ADHD—and has worked with hundreds of clients to rebuild their relationship with food through evidence-based, neurodivergent-friendly care.

Sarah regularly speaks at national events, including TEDx, ADHD UK, and The Sleep Charity. With lived experience in her own neurodivergent family and a background in corporate life, she brings both professional expertise and personal empathy to every talk. Sarah is the author of four books on ADHD and eating behaviour, and a passionate advocate for a compassionate, science-backed approach to nourishment that works for real life.

Proudly partnering with Sonutrtition:

Leading the way in evidence-based nutritional therapy for emotional eating and ADHD, through education, functional testing and personalised nutrition and lifestyle plans.

adhdandnutrition.co.uk | @sonutrition

This workshop is 16+ 

Testimonials from our guests

⭐ Truly riveting talks, always enjoy these - a great way to spend an evening with some pals. Already looking forward to the next one. - Alexander P 

⭐ Expertly run, talks are always super informative and a lot of fun! Couldn’t recommend these enough! 5 star. - Owen S

⭐ Been to a few talks and all have been super interesting. An enjoyable evening to go to either alone or with friends. The talks make for stimulating conversation. Highly recommend! - Daisy J