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.

Study: Not all dietary proteins are digested equally in the gut

As protein-rich diets become increasingly popular, a new study suggests that categorizing dietary proteins as either animal- or plant-based fails to effectively capture the source-specific differences in their composition, digestive efficiency and accessibility to the gut microbiota.

4 Sep 2025

Alzheimer’s research uncovers a new therapeutic pathway for the memory-robbing malady

The gut contains the largest collection of immune cells in the body. New research at the Buck Institute shows that some of those immune cells travel along the brain/gut axis in a mouse model of Alzheimer's disease (AD) providing a potential new therapeutic pathway for the memory-robbing malady.

29 Aug 2025

Longitudinal study reveals how GLP-2 analog therapy transforms the intestinal environment

Researchers from Japan discover that glucagon-like peptide-2 (GLP-2) analogs can deeply and beneficially reshape the intestinal environment.

27 Aug 2025

Gut bacteria and insomnia influence each other in small but significant ways, study shows

Scientists used Mendelian randomisation to explore the two-way relationship between gut microbiota and insomnia, analyzing GWAS data from over 386,000 individuals and two major microbiome cohorts. The study found only limited taxa surviving strict correction, suggesting small but causal links that highlight the gut–brain axis in sleep health.

21 Aug 2025

Fasting supports type 1 diabetes care by reshaping the microbiome

A week of fasting alters the gut microbiome in type 1 diabetes, aligning it with healthy profiles and enhancing cholesterol and weight management.

20 Aug 2025

Natural gut molecule reverses liver damage and repairs gut lining

UC Davis Health researchers have discovered that a natural molecule made by gut bacteria can reverse liver damage and repair the gut lining after aflatoxin exposure.

12 Aug 2025

Gut bacteria may connect pregnancy diet to childhood autism

Unhealthy maternal diets may alter gut microbes, impacting brain development and increasing autism risk in offspring. Study the microbiome's influence.

8 Aug 2025

Mediterranean diet delivers gut health benefits for expectant mothers

A Mediterranean diet during pregnancy significantly alters the maternal gut microbiome, increasing beneficial bacteria, while a mindfulness-based stress reduction program shows more limited effects. Neither intervention affected the vaginal microbiome, and the clinical significance of these changes requires further study.

6 Aug 2025

Gut microbiota and short chain fatty acids influence bone health in postmenopausal osteoporosis

Postmenopausal osteoporosis (PMOP) is framed as a systemic bone disease driven by estrogen withdrawal, but emerging evidence positions gut dysbiosis and its fermentation products—short-chain fatty acids (SCFAs)—as equally influential regulators of skeletal fate.

6 Aug 2025

Mouth and gut microbes talk to each other - here’s why it matters for disease

Researchers reviewed nearly 250 studies to uncover how the oral and gut microbiomes communicate through multiple pathways, influencing the risk of diseases such as IBD, colorectal cancer, and cardiovascular disorders. The review highlights that maintaining oral health and dietary habits is crucial for overall systemic wellbeing.

4 Aug 2025

Tailored granola transforms gut bacteria and improves mood

A study reveals that custom granola can boost gut health and mood by increasing beneficial bacteria and short-chain fatty acids based on individual microbiota.

4 Aug 2025

New research reveals why fiber-rich diets fuel you better than refined foods

This study quantifies how much energy the human body harvests from gut microbial fermentation of dietary fiber, integrating bacterial physiology, diet, and metagenomic data. Results reveal that dietary fiber, not microbiome composition, mainly determines the amount of short-chain fatty acids absorbed, impacting daily energy and metabolic health.

31 Jul 2025

Intratumoral microbial metabolites shape the tumor microenvironment and impact immunotherapy

The tumor microenvironment (TME) represents a highly complex system that encompasses cellular components (such as cancer cells, stromal cells, and immune cells) and non-cellular components (such as blood vessels and signaling molecules).

30 Jul 2025

What’s better for your gut: lean beef or chicken? Science weighs in

A crossover trial in healthy young adults found that both lean chicken and beef diets reduced gut microbial richness, but only chicken caused significant diversity loss. The study highlights that lean local beef may have a milder impact on the gut microbiome than chicken.

29 Jul 2025

How a leaky gut could be putting your heart at risk

Researchers reviewed recent studies showing that gut dysbiosis contributes to heart failure by weakening the gut barrier, enabling harmful metabolites like TMAO to trigger inflammation and cardiac damage. The review highlights a bidirectional “gut-heart axis” and points to new avenues for dietary and microbial therapies.

28 Jul 2025