Gut Brain Axis News and Research

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Eating a Mediterranean diet may lower anxiety symptoms in teens

Findings reveal that the Mediterranean diet may reduce anxiety symptoms in adolescents, with maternal dietary habits also impacting offspring mental health.

2 Jun 2026

Urine-based autism screening using gut microbial metabolites

Elevated gut microbe metabolites may distinguish children with autism, paving the way for a non-invasive urine test and a new ASD subtype linked to microbiome.

29 May 2026

Gum disease pathogen may drive Alzheimer’s through microglial ferroptosis pathway

Alzheimer's disease (AD), the leading cause of dementia, is projected to affect 152 million individuals worldwide by 2050; yet its pathogenesis remains poorly understood and effective treatments are lacking.

24 May 2026

Do repeated football head hits disrupt the gut microbiome?

A small exploratory study of collegiate football players found that non-concussive head impacts are correlationally linked to acute and season-long shifts in gut microbiome composition, with changes most pronounced 48–72 hours after significant impacts. However, most associations weakened after correction for multiple testing, and the authors stress the findings are preliminary and hypothesis-generating.

10 May 2026

Obesity and Alzheimer’s linked through early metabolic disruptions

By 2030, the population in the United States aged 65 and older is expected to reach 71 million or about 20% of Americans. This growth is likely to increase the burden of age-related diseases, particularly Alzheimer's disease (AD), affecting about 1 in 9 adults over 65.

5 May 2026

AHA calls for lifelong brain health strategy to prevent cognitive decline

The AHA scientific statement calls for a life-course approach to brain health that integrates cognitive, emotional, behavioral, vascular, environmental, inflammatory, sleep, microbiome, and social factors. It highlights how early-life exposures, mental health, pollution, chronic inflammation, poor sleep, gut dysbiosis, and socioeconomic adversity may shape brain resilience and later-life cognitive decline.

29 Apr 2026

Ultra-processed foods linked to poorer attention and higher dementia risk scores

Research shows that higher ultra-processed food consumption may impair attention and elevate modifiable dementia risk, highlighting concerns for brain health.

28 Apr 2026

Brain-Gut Health Initiative supports AI-assisted diagnosis of psychiatric disorders

Psychiatric disorders affect millions worldwide, but their diagnosis still relies on clinical observation instead of standard biological tests.

25 Apr 2026

Drinking coffee alters your microbiome, mood, and memory

Coffee consumption influences the microbiota-gut-brain axis, affecting cognitive performance and emotional regulation through complex biological pathways.

24 Apr 2026

Late-night eating may amplify the effects of stress on gut health

It's well known that chronic stress can disrupt bowel function, sending people running to the bathroom or making them constipated.

23 Apr 2026

Coffee impacts the gut-brain axis to improve mood and stress

New research from APC Microbiome Ireland, a world leading research centre at University College Cork, has comprehensively explored the mechanisms behind coffee's positive effects on the gut-brain axis for the first time.

21 Apr 2026

When omega-3 may help mental health and when they may not

Investigating omega-3 fatty acids, this review highlights their impact on mental health, inflammation, and the potential for therapeutic use in disorders.

10 Apr 2026

Gut microbiome changes improve memory in early cognitive decline

Research shows that modifying the gut microbiome can enhance cognitive performance and mitigate dementia risk, highlighting the gut-brain connection.

1 Apr 2026

Parasites trigger a gut-to-brain signal that cuts food intake during infection

Researchers found that intestinal tuft cells signal to crypt enterochromaffin cells by releasing acetylcholine, triggering serotonin release and activating a gut-to-brain vagal pathway during type 2 inflammation. This sustained signalling, rather than the initial acute response, was linked to reduced food intake in mouse models of parasitic infection.

29 Mar 2026

New microbiome therapy improves autism symptoms in children

This study evaluates a new fecal microbiota transplant method, revealing significant symptom improvements in children with autism without invasive procedures.

18 Mar 2026

Postbiotics may help treat PCOS by restoring microbiome balance

Emerging studies suggest postbiotics could aid PCOS management by restoring gut microbiome balance and enhancing insulin sensitivity and hormonal regulation.

10 Mar 2026

No evidence probiotic skincare can improve mood

Current findings reveal no support for emotional benefits from probiotic cosmetics, highlighting the need for further investigation into neurocosmetics.

5 Mar 2026

New review explores whether berries can slow cognitive decline linked to obesity

This systematic review in Nutrients evaluates human studies investigating whether polyphenol-rich berry consumption can modulate obesity-related metabolic dysfunction and support cognitive performance, particularly in individuals at risk of mild cognitive impairment. Evidence suggests modest memory benefits and possible metabolic improvements, although biomarker findings and long-term clinical relevance remain uncertain.

22 Feb 2026

Probiotic form matters for memory, mood, and more

How you take probiotics can affect their impact on the brain. A study from örebro University points to new possibilities for personalized approaches, depending on whether the primary aim is, for example, to improve memory or reduce depression.

16 Feb 2026

Gut bacteria use formic acid as an electron taxi

Among the many trillions of microorganisms in the human gut is Blautia luti. Like many gut bacteria, it metabolizes indigestible dietary components, such as fiber in the form of carbohydrates.

7 Feb 2026