Can food really shape your brain? Chartered psychologist Kimberley Wilson on the science of nutrition, mood and mental health.
We treat the brain and the body as if they’re two different projects. A cardiologist for the heart, a gastroenterologist for the gut, a psychologist for the mind. But the brain is an organ, oxygenated by the same blood, fed by the same nutrients, and shaped by the same lifestyle as everything else.
As “brain health” becomes the next wellness buzzword and the internet is flooded with gut-brain axis claims, supplement pitches and mood-food promises, working out what’s actually supported by evidence has never been harder.
In this episode, Dr Frankie is joined by chartered psychologist and MSc-qualified nutritionist Kimberley Wilson, author of How to Build a Healthy Brain and Unprocessed, for a grounded, evidence-based conversation on what food, sleep, stress and movement actually do to your brain - and where the popular claims fall apart.
Drawing on more than a decade of clinical work, including seven years running the therapy service at Europe’s largest women’s prison, Kimberley explains where the science is strong, where it’s overstated, and why looking after your brain is about far more than doing a crossword.
In this episode, you’ll learn:
Timestamps:
00:00 Why We Can’t Separate the Brain from the Body
01:42 What Working in a Women’s Prison Taught Her About Nutrition and Behaviour
04:30 The Ultra-Processed Food Problem: What It Does to Your Brain
06:51 Insulin Resistance, Type 3 Diabetes and Dementia Risk
10:41 Why Healthy Life Expectancy in the UK Is So Low
13:19 Sleep as a Jet Wash for the Brain
16:12 Exercise, Brain Volume and Building Cognitive Reserve
19:28 Why the Benefits of Movement Are Independent of Weight Loss
22:00 The Gut-Brain Axis: What’s Real and What’s Overhyped
25:25 The 90% Serotonin Myth — and What It Actually Means
31:57 Why We Reach for Sugar When We’re Stressed
34:00 The Milkshake and Horror Movie Experiment
36:14 What Alcohol Really Does to Your Brain
38:11 The Red Wine Myth and the J-Curve Explained
39:52 Why the Mediterranean Diet Has the Strongest Data
42:25 The Truth About Blueberries and “Brain Foods”
46:05 The Reversed Flynn Effect: Are We Getting Less Intelligent?
50:04 Mindfulness and Gratitude — Fluffy or Physiological?
52:07 When Mindfulness Isn’t the Right Tool
55:41 Three Practical Tips for Building a Healthier Brain
Your brain isn’t a separate machine sitting on top of your body. It’s an organ, and it responds to the same things every other organ does - what you eat, how you sleep, how you move, and how you handle stress.
The evidence doesn’t support magic foods, single supplements, or one-size-fits-all fixes. It points, consistently, to overall dietary patterns, physical activity, sleep quality and social connection as the levers that actually matter for long-term brain health.
Connect with Kimberley Wilson
Instagram: https://www.instagram.com/foodandpsych
Follow Dr Frankie Jackson-Spence on Instagram: @drfrankiejs
https://www.instagram.com/drfrankiejs/
FOLLOW Vision of Health on Instagram: https://www.instagram.com/visionofhealthpod/
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