The link between micronutrients and mental health is one of the most overlooked stories in modern medicine, and Professor Julia Rucklidge has spent more than two decades proving it matters. In this episode of Pushing the Limits, she shares the research on micronutrients and mental health that has challenged psychiatry's drug-first model, showing that broad-spectrum vitamins and minerals can treat ADHD, depression and anxiety, often as effectively as medication and without the side effects. If you have ever wondered how deeply micronutrients and mental health are connected, this conversation will change how you think about your brain, your mood and the food you eat every day.

Professor Julia Rucklidge is a clinical psychologist at the University of Canterbury and Director of Te Puna Toiora, the Mental Health and Nutrition Research Lab. She is co-author, with Bonnie Kaplan, of The Better Brain, and her work has been published in leading psychiatry journals and viewed by millions through her TEDx talk. She came into this field as a sceptic, trained to believe that nutrition was irrelevant to the brain, and changed her mind only when the evidence became impossible to ignore.

In this conversation, Julia explains what her clinical trials actually found, and why 60 to 80 percent of people respond to a broad-spectrum approach once you move past the noise of a blinded study. We talk about why feeding the whole system beats chasing a single nutrient, what the biomarkers reveal about inflammation, methylation and the microbiome, and why the RDAs were never designed to support an optimally functioning brain. She makes the case that the recommended daily allowances we rely on were built to prevent deficiency diseases, not to help the brain thrive, and that this gap matters enormously for anyone struggling with their mental health.

We also explore the bigger forces at play: depleted soils and what modern agriculture has done to the nutrient density of our food, the rise of ultra-processed food and why Julia calls it the cigarette of the twenty-first century, and the antidepressant withdrawal that so many people are never warned about. She shares her frustration with New Zealand's outdated supplement regulations, where a product can be effectively banned for containing a fraction too much of a nutrient, and a distributor can be threatened with serious penalties for selling something that genuinely works.

Most of all, this is a hopeful conversation. It is about taking back control of your health through the food on your plate, understanding the real connection between what you eat and how you feel, and recognising that small, consistent changes can have a profound effect on the brain. Whether you are a parent navigating a child's behaviour, someone managing your own mental health, or simply curious about the science of nutrition and the brain, this episode will give you a new lens on what is possible.

If you have ever been told that nutrition is irrelevant to your brain, this episode is for you.

Resources and mentions: The Better Brain by Bonnie Kaplan and Julia Rucklidge What Your Food Ate by David Montgomery and Anne Biklé Te Puna Toiora, Mental Health and Nutrition Research Lab, University of Canterbury

Biography:

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Professor Julia Rucklidge is a clinical psychologist at the University of Canterbury and Director of Te Puna Toiora, the Mental Health and Nutrition Research Lab. One of the world's leading researchers in nutritional psychiatry, she has spent more than two decades running placebo-controlled trials showing that broad-spectrum micronutrients can treat ADHD, depression, anxiety and stress, often as effectively as medication and without the side effects. She is co-author, with Bonnie Kaplan, of The Better Brain, and her TEDx talk on nutrition and mental health has been viewed millions of times. Based in Christchurch, New Zealand, she is on a mission to put nutrition where she argues it belongs: as a serious, evidence-based part of how we treat and prevent mental illness.