Articles

Lion’s mane (Hericium erinaceus) has generated significant interest as a natural nootropic due to its ability to stimulate nerve growth factor (NGF) in laboratory studies. A small number of human trials show promise for mild cognitive impairment, but the evidence base remains thin compared to better-studied supplements. Supplement quality varies enormously, and understanding the difference between fruiting body and mycelium-on-grain products is essential before buying.

Magnesium L-threonate (Magtein) is the only form shown to meaningfully increase brain magnesium levels and improve cognition in clinical research, while magnesium glycinate offers superior bioavailability, calming effects via its glycine component, and strong sleep support at a lower cost. This head-to-head comparison breaks down the science, practical trade-offs, and when to use each form — or combine them.

Parkinson’s disease is a progressive neurodegenerative condition driven by the loss of dopaminergic neurons in the substantia nigra, with oxidative stress and neuroinflammation as central pathological mechanisms. Emerging epidemiological and mechanistic evidence suggests that dietary patterns — particularly the Mediterranean diet, caffeine intake, polyphenol-rich foods, and omega-3 fatty acids — modulate PD risk and progression. This article examines the evidence behind specific dietary factors, the gut-brain axis connection, practical concerns such as protein-levodopa timing, and a framework for neuroprotective eating.

Dopamine is synthesized from the amino acid tyrosine through a pathway that depends on iron, vitamin B6, folate, and vitamin C. Diets rich in tyrosine-containing whole foods support steady dopamine production, while ultra-processed foods hijack the reward system and lead to receptor downregulation over time. This article covers the full synthesis pathway, the role of gut bacteria, the ADHD connection, and evidence-based strategies for maintaining healthy dopamine function.

The brain consumes roughly 20% of the body’s glucose supply, making it uniquely vulnerable to blood sugar instability. Research consistently links glucose spikes, crashes, and chronic insulin resistance to impaired cognition, accelerated brain ageing, and elevated dementia risk. Stabilising blood sugar through diet composition, meal timing, and simple behavioural strategies is one of the most effective ways to protect cognitive performance.

Anxiety disorders are the most prevalent mental health conditions worldwide, and emerging evidence from nutritional psychiatry shows that dietary patterns meaningfully influence anxiety risk and symptom severity. This guide covers the biological mechanisms — including the GABA system, HPA axis dysregulation, and gut-brain signalling — examines the key clinical evidence from the Lassale meta-analysis, omega-3 trials, and probiotic research, and provides a practical dietary framework for calming the nervous system alongside clinical treatment.

Vitamin D receptors are found throughout the brain, and the nutrient plays active roles in neuroprotection, neurotransmitter synthesis, and immune regulation within the central nervous system. Observational studies consistently link low vitamin D status to accelerated cognitive decline and increased dementia risk, though large randomized controlled trials like VITAL-Cog have not yet demonstrated clear cognitive benefits from supplementation in vitamin D-replete populations. Correcting deficiency remains a high-priority, low-risk intervention for brain health.

Dietary protein provides the amino acid building blocks for the brain’s major neurotransmitters, including dopamine (from tyrosine) and serotonin (from tryptophan). Paradoxically, high-protein meals may reduce brain serotonin synthesis because tryptophan is outcompeted at the blood-brain barrier by other large neutral amino acids. This article covers the neurotransmitter precursor pathways, the tryptophan paradox, protein timing for cognitive performance, protein needs across the lifespan, and practical targets for brain health.

A well-planned vegan diet delivers meaningful neuroprotective benefits through polyphenols, fiber, and anti-inflammatory compounds — but it also introduces serious nutrient gaps that can damage the brain if left unaddressed. We review the evidence from EPIC-Oxford, the Adventist Health Studies, and clinical research on B12 deficiency, DHA, choline, and creatine, then lay out a practical supplementation protocol for cognitive optimization on a plant-based diet.

The green-Mediterranean diet is a polyphenol-enriched variant of the traditional Mediterranean diet that adds Mankai duckweed, green tea, and walnuts while further reducing red meat. Data from the DIRECT-PLUS randomized controlled trial suggest it may slow age-related brain atrophy more effectively than the standard Mediterranean diet, particularly in the hippocampus. The evidence is promising but still based largely on a single trial.