Feel Better, Live More with Dr Rangan Chatterjee · Dr Rangan Chatterjee: GP & Author

BITESIZE | How to Make Change That Actually Lasts | Dr Rangan Chatterjee #618

January 30, 2026·21 min·1 clip

Why do we stop trusting ourselves when experts like Chris Palmer and Felice Jacker give conflicting diet advice?

Dr. Chatterjee opens by identifying a central paradox of modern health: despite unprecedented access to health information through podcasts, books, and social media, both physical and mental health outcomes are declining. He acknowledges external factors such as food environment, work pressures, and cost of living, but argues there is also an internal factor that is rarely addressed. That factor is the erosion of what he calls 'inner expertise' — the individual's own knowledge of what works best for their body and life. He illustrates the problem with two credible, research-backed experts who appear to contradict each other: Dr. Chris Palmer from Harvard, who has documented ketogenic diets transforming outcomes for people with bipolar disorder and schizophrenia, and Professor Felice Jacka, whose randomised controlled trial showed a modified Mediterranean diet rich in whole grains, fatty fish, nuts, and legumes could put some cases of depression into remission. Listeners, he says, frequently message him asking which expert to trust. His answer reframes the question entirely: the more useful question is not which expert to trust, but why you no longer trust yourself. He argues that no expert's advice is universally correct, including his own, and that the solution is to use expert advice as a starting point while paying close attention to personal response. He recommends trying one dietary approach for four weeks, monitoring energy, sleep, focus, gut health, and mood, then trying the alternative and comparing results. He reflects on patients throughout his career who made lasting change, noting that at some point each of them became their own expert — able to identify which recommendations worked for them and which did not. He warns that following the wrong plan and failing can be more damaging than not trying at all, because people tend to blame themselves rather than the plan. He then introduces interoception — described as a sixth sense that reads signals from internal organs rather than the external world — as the scientific basis for self-trust. He cites a Lancet study by Professor Hugo Critchley at Brighton and Sussex Medical School, in which training autistic individuals with anxiety to attend to heartbeat signals led to complete anxiety recovery in 31% of participants versus 16% in a control group. He also references Professor Cynthia Price at the University of Washington, whose work with substance abuse patients showed that training interoceptive awareness helped regulate emotional stress and improved outcomes. He notes that physical exercise may partly derive its mental health benefits from increasing interoceptive awareness. He then connects this science to a practical problem: immediately consuming outside information upon waking — news, email, social media — prevents people from tuning into their body's signals and perpetuates the cycle of jumping between external plans. His practical recommendation is a daily solitude practice, performed consistently at the same time each day. He shares his own morning routine of three Ms — mindfulness, movement, and mindset — comprising meditation, a brief strength workout, and journaling. He emphasises that the specific practice matters less than the consistency, and illustrates this with the example of a friend who performs the same five yoga postures each morning, using variation in how they feel as a reliable signal of her internal stress load. He closes by encouraging listeners to identify their own solitude practice for the year.

As heard by us

A calm case for trusting your own judgment before chasing the next fix.

Dr Rangan Chatterjee uses this Bite Size episode to make a plain case for trusting personal judgment over outside authority. He asks listeners to test advice against everyday life, pay attention to whether a plan feels workable, and treat the body as a source of information…

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Why you'd press play

For when you want change that lasts without borrowing someone else's life plan.

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