Articles

Alcohol impairs cognition acutely by enhancing GABA inhibition and suppressing glutamate signaling, and chronically by reducing brain volume, promoting neuroinflammation, and disrupting sleep architecture. Recent large-scale studies — including Mendelian randomization analyses and UK Biobank neuroimaging data — have dismantled the ‘moderate drinking is healthy’ narrative. This article covers the full neuroscience, debunks persistent myths, and provides evidence-based practical guidance.

Ultra-processed foods now account for over half the calories consumed in many Western countries, and the cognitive consequences are becoming difficult to ignore. Large cohort studies consistently link higher UPF intake to faster cognitive decline, increased dementia risk, and measurable changes in brain structure. This article breaks down the evidence, explains the mechanisms, identifies the worst offenders, and provides a realistic framework for reducing UPF without requiring perfection.

After 50, the brain faces accelerating volume loss, rising oxidative stress, chronic inflammation, and declining neurotransmitter production. The Mediterranean and MIND diets have the strongest evidence for slowing this trajectory, supported by landmark trials and large cohort studies. This article examines the key nutrients, protein requirements, hydration needs, and social eating patterns that form an age-specific dietary framework for protecting the aging brain.

Burnout is a state of chronic stress-induced cognitive exhaustion characterised by HPA axis dysregulation, prefrontal cortex impairment, systemic inflammation, and depletion of key nutrients including magnesium, B vitamins, vitamin C, and omega-3 fatty acids. While no large-scale randomised trials have tested dietary interventions specifically for burnout recovery, converging evidence from stress physiology, nutritional neuroscience, and clinical nutrition supports a phased dietary reset — stabilising blood sugar, replenishing depleted nutrients, reducing neuroinflammation, restoring gut health, and recalibrating caffeine intake — as a meaningful and low-risk component of recovery.

Diet is one of the most underappreciated modifiable factors influencing sleep quality. The tryptophan-serotonin-melatonin pathway connects what you eat directly to your ability to fall and stay asleep, while specific foods — including tart cherries, kiwi, fatty fish, and magnesium-rich nuts — have been shown in controlled trials to improve sleep parameters. This guide covers the evidence for sleep-promoting and sleep-disrupting foods, the role of meal timing, and provides a practical evening eating protocol.

Your gut and brain are in constant two-way communication through the vagus nerve, short-chain fatty acids, and immune signalling. Disruptions to the gut microbiome — caused by ultra-processed food, low fibre intake, chronic stress, and antibiotic overuse — are increasingly linked to cognitive impairment, brain fog, and mood disturbances. This guide explains the science behind the gut-brain axis, highlights the landmark Wastyk et al. 2021 fermented foods trial, and provides a practical weekly protocol for supporting cognitive function through microbiome-friendly eating.

Magnesium is essential for NMDA receptor regulation, synaptic plasticity, and sleep quality — yet nearly half of adults in the developed world consume less than the recommended amount. Not all supplement forms are equal: magnesium L-threonate has the strongest evidence for raising brain magnesium levels, while glycinate and taurate offer good bioavailability with calming effects. This article compares all major forms and explains who needs more.

Multiple sclerosis is a chronic autoimmune disease in which the immune system attacks myelin, the insulating sheath around nerve fibers in the central nervous system. Emerging research suggests that dietary factors — including vitamin D status, omega-3 fatty acid intake, gut microbiome composition, sodium consumption, and polyphenol-rich foods — can modulate the neuroinflammatory processes that drive MS progression. This article examines the evidence behind specific dietary strategies, from the historical Swank diet to the Wahls Protocol and the Mediterranean pattern, while emphasizing that nutrition is a complement to, not a replacement for, disease-modifying therapy.

The ketogenic diet produces ketone bodies that serve as an alternative brain fuel, with strong evidence for seizure reduction in epilepsy, moderate evidence for cognitive improvement in Alzheimer’s disease and mild cognitive impairment, and limited evidence for benefits in cognitively healthy adults. We review the mechanisms, the clinical data, and practical considerations for anyone considering keto for brain health.

The relationship between breakfast and cognition is more nuanced than either side of the debate acknowledges. Evidence for breakfast improving cognitive performance is strongest in children and elderly populations, while healthy adults show mixed results. Glycemic quality matters more than the mere act of eating in the morning, and individuals adapted to intermittent fasting appear to function well without breakfast.