Short Chain Fatty Acids News and Research

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Butyrate and propionate are two important short-chain fatty acids (SCFAs) produced in the human gut. They have been shown to have significant immune system effects in the intestinal mucosa, by inducing the differentiation of T-regulatory cells via inhibition of histone deacetylase (HDAC). This enzyme keeps chromatin from unwinding and, therefore, inhibits gene transcription.

Oral weight loss ingredient may have adverse biological effects for the gut and beyond

A new study from Adelaide University is turning a spotlight on those tablet versions, finding that the absorption-enhancing ingredient salcaprozate sodium (SNAC) may have measurable adverse biological effects for the gut and beyond.

17 Feb 2026

Big breakfast study reveals protein curbs appetite but fiber delivers stronger gut microbiome benefits

A randomized crossover weight loss trial in adults with overweight or obesity found that higher protein big breakfasts improved satiety, while higher fibre breakfasts produced slightly greater weight loss and more favourable gut microbiota markers. Both diets improved metabolic biomarkers, but microbiota changes reflected surrogate gut health indicators rather than direct clinical outcomes.

15 Feb 2026

Gut problems may shape Parkinson’s disease progression through the gut-brain axis

This narrative review examines how gastrointestinal dysfunction, gut dysbiosis, and altered gut-brain axis signaling are closely associated with the onset and progression of Parkinson’s disease. It synthesizes evidence supporting a possible bottom-up disease model while highlighting integrative, gut-targeted strategies as adjuncts to symptom management rather than proven disease-modifying therapies.

27 Jan 2026

Research suggests bamboo-based foods could support metabolic health

This systematic review synthesizes human, in vitro, and food-processing studies on bamboo consumption, finding limited but suggestive evidence for metabolic, digestive, and antioxidant benefits when products are properly prepared. It also highlights safety considerations, including potential goitrogenic effects from inadequately processed shoots, and calls for higher-quality human trials.

18 Jan 2026

Dietary protein reshapes how cholera bacteria colonize the gut

Researchers investigate the role of dietary components and the gut microbiota in cholera.

13 Jan 2026

Bowel preparation for colonoscopies may temporarily alter gut balance, preclinical study suggests

New preclinical research suggests that bowel preparation procedures for colonoscopies may temporarily alter gut balance, culminating in unappreciated effects in patients with compromised gastrointestinal health.

8 Jan 2026

The gut is not just digestive and new evidence shows it actively controls brain function

This comprehensive review synthesizes a decade of human and animal research to explain how the gut and brain communicate through hormonal, neural, immune, and microbial pathways. It highlights how disruptions in these pathways contribute to gastrointestinal, metabolic, and neurological disorders, and how modern therapies are beginning to exploit gut–brain signaling for clinical benefit.

6 Jan 2026

Estrogen drives gut pain and explains higher rates of IBS in women

Women are dramatically more likely than men to suffer from irritable bowel syndrome (IBS), a chronic condition causing abdominal pain, bloating, and digestive discomfort.

18 Dec 2025

How ultra-processed foods shape Crohn’s disease risk and what dietary strategies can really help

This narrative review synthesizes evidence showing that higher intake of ultra-processed foods is consistently associated with increased Crohn’s disease risk, with mechanistic pathways implicating emulsifiers, carrageenan, maltodextrin, titanium dioxide, sweeteners and salt. It also highlights that minimally processed dietary strategies, including EEN and CDED, show therapeutic promise, particularly in pediatric Crohn’s disease.

11 Dec 2025

Filtered coffee shows a causal link to healthier HbA1c levels

Genetically predicted filtered coffee consumption is causally associated with lower HbA1c levels, while other coffee preparation methods show no such benefit. This effect appears to be partly mediated by increases in propionate producing gut bacteria, particularly Veillonella.

10 Dec 2025

Industrial and farm chemicals quietly alter the balance of gut microbes

This study systematically screened over 1,000 agricultural and industrial chemicals and found that many can inhibit human gut bacteria in vitro. Beyond antimicrobial effects, these chemicals act as selective pressures that can reshape microbial competition, tolerance mechanisms, and metabolic pathways.

8 Dec 2025

Microbial warning signs that predict death risk in severe pneumonia

Researchers examine the gut and lung microbiota of severe community-acquired pneumonia patients.

3 Dec 2025

How the gut microbiome links obesity to colorectal cancer

The gut microbiome serves as both a biomarker and therapeutic target in diseases like obesity, metabolic syndrome, and colorectal cancer.

28 Nov 2025

Chronic drinking weakens the blood-brain barrier through the gut

Chronic alcohol consumption disrupts the blood-brain barrier, but Faecalibacterium prausnitzii shows promise in repairing this damage and improving cognition.

27 Nov 2025

Innovative new tool helps understand how gut microbes interact to influence health

The gut microbiome is made up of trillions of microbes that play a vital role in keeping us healthy.  A disturbance in the balance of these microbes can contribute to a variety of health conditions, such as inflammatory bowel disease (IBD).

20 Nov 2025

Gut microbes may fuel allergic rhinitis symptoms

The study identifies gut microbiome alterations in allergic rhinitis, suggesting a gut-nose axis that could inform new treatment approaches for this condition.

17 Nov 2025

Dash diet cuts diabetes complications by targeting blood pressure kidney health and inflammation

The DASH diet supports metabolic health in people with diabetes by improving blood pressure, renal function, lipids, and modest glycemic markers while reducing risks linked to vascular and inflammatory pathways. Its broad nutrient-driven mechanisms also benefit related conditions such as neuropathy, PCOS, and retinopathy, making it a versatile tool for cardiometabolic care.

16 Nov 2025

Do dietary supplements really improve muscle health in non-athletes?

Dietary supplements can support muscle health, but their effectiveness varies. This review explores their role in physical activity and age-related muscle loss.

10 Nov 2025

New review illuminates the intricate connections between gut microbiota and sleep regulation

A comprehensive review published today in Brain Medicine illuminates the intricate connections between gut microbiota and sleep regulation, establishing the microbiota-gut-brain axis as a critical pathway in understanding and potentially treating sleep disorders.

4 Nov 2025

Exploring the gut-brain-immune axis in neurodegeneration

Neurodegenerative diseases (NDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS), represent a growing global health burden, particularly in aging populations.

28 Oct 2025