Prebiotics News and Research

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Engineered beneficial bacteria reduce bloodstream infections after stem cell transplants

Researchers at City of Hope®, one of the largest and most advanced cancer research and treatment organizations in the country, and collaborators have pioneered a new approach to preventing dangerous bloodstream infections in patients receiving donor stem cell transplants for blood cancers.

3 Nov 2026

Blood may reveal signs of gut-related disease that stool samples miss

In a study of 193 participants, researchers found that blood-based short-chain fatty acid profiles distinguished colorectal cancer, celiac disease, obesity, and healthy controls with 95% accuracy, compared with 59% for stool-based measurements. Combining blood and stool profiles increased accuracy to 97%, suggesting that circulating microbial metabolites may offer valuable diagnostic information, although larger studies are needed to validate the findings.

3 Nov 2026

New enzyme discovery reveals how breast milk feeds infant gut bacteria

Microbiologists have found that an enzyme, not normally associated with microbial activities in the human gut, to have a role in how some bacteria access key nutrients in breast milk.

3 Nov 2026

The type of fiber you eat shapes how gut bacteria feed and work together

A 2021 review examined how the chemical structure and physical properties of dietary fiber influence which gut bacteria can break it down and how microbial species compete and cooperate during fermentation. The authors described how these interactions contribute to short-chain fatty acid production, while emphasizing the need for further research involving intact plant foods to understand their implications for human health.

1 Nov 2026

Could eating whey protein before meals help reduce blood sugar spikes?

A narrative review of 57 randomized trials found that milk and dairy products have inconsistent effects on long-term blood sugar control in adults with type 2 diabetes or prediabetes. Whey protein consumed before meals more consistently reduced short-term blood sugar spikes, but further research is needed to establish whether these benefits persist over time.

19 Oct 2026

Gut bacteria metabolites directly extend the lifespan of host flies

Gut microbiota influences multiple aspects of host physiology, including metabolic and immune functions.

24 Sep 2026

Shatavari may affect more than hormones, and the gut could help explain why

A review in Nutrients examined how bioactive compounds in Asparagus racemosus (Shatavari) may influence cognitive health through the microbiota-gut-brain axis, estrogen-related signaling, neuroinflammation, oxidative stress, and neurotransmitter regulation. Evidence from computational, cellular, animal, and limited human studies suggests several plausible biological pathways, but key questions remain about bioavailability, brain exposure, dosing, and clinical efficacy.

16 Sep 2026

Simple fecal test could help detect colorectal and pancreatic cancers

Gastrointestinal and pancreatobiliary cancers can be difficult to detect early, creating a need for practical, noninvasive approaches for early detection and risk assessment.

16 Sep 2026

Scientists reviewed 20 edible and medicinal fungi for clues to better prebiotics

A review of 20 non-toxic edible and medicinal fungal species found that their polysaccharides can resist digestion, interact with gut microbes, and influence microbial metabolites linked to intestinal and metabolic health. The evidence suggests potential benefits for conditions including colitis, type 2 diabetes, and obesity, although most findings currently come from laboratory and animal studies.

27 Aug 2026

Microbial metabolites could help improve functional cure rates for hepatitis B

Chronic hepatitis B (CHB) remains a major global challenge. Current therapies suppress HBV but rarely achieve functional cure (sustained HBsAg loss).

30 Jul 2026

Duke University engineers use robots and AI to improve gut health

Biomedical engineers at Duke University have demonstrated a method for systematically developing novel, complex combinations of probiotics and prebiotics to more effectively maintain gut health and treat various gastrointestinal diseases.

27 Jul 2026

Gut microbial metabolites may shape vulnerability to stress-related mental disorders

Gut microbiome-derived metabolites may influence stress-related mental disorders through neural, immune, endocrine, and epigenetic pathways. Evidence is strongest for depression and preclinical models, while larger longitudinal human studies are needed to establish causality and clinical value.

20 Jul 2026

Maternal diets high in UPFs may influence children’s health years later

A narrative review of 84 publications links higher ultra-processed food intake during pregnancy and early childhood with poorer diet quality, maternal complications, childhood obesity, and potential immune, metabolic, and neurodevelopmental effects. The authors identify possible microbiome and biopsychosocial pathways but emphasize that the predominantly observational evidence cannot establish causality.

17 Jul 2026

Gut microbiota may shape eating behavior and guide new obesity treatments

The review shows how gut microbiota may influence appetite, food reward, inflammation, and energy balance through the gut-brain axis. Microbiota-targeted approaches could support future treatments for obesity and eating disorders, but clinical evidence remains limited.

12 Jul 2026

Yogurt, prebiotics, and probiotics link to lower colorectal cancer odds in U.S. adults

A national NHANES analysis of 9,405 U.S. adults aged 50 and older found that any yogurt, prebiotic, or probiotic consumption was associated with about 50% lower odds of self-reported colorectal cancer. Because the study was cross-sectional, it cannot prove causation but supports further research into microbiota-targeted dietary strategies.

8 Jul 2026

Botanical prebiotics may steer skin microbes toward healthier balance

Researchers tested plant-derived prebiotic candidates against selected skin-associated bacteria and found that garlic, flaxseed, and mango ginger extracts inhibited S. aureus or acne-associated C. acnes in vitro. Onion and guduchi extracts modestly promoted S. epidermidis, suggesting a microbiome-targeted skincare route that now needs validation in skin models and human studies.

30 Jun 2026

AI and multiomics reveal how gut bacteria trigger colon cancer

Over the past two decades, high‑throughput sequencing has dramatically expanded our understanding of the gut microbiome's composition.

26 Jun 2026

Gut microbes emerge as potential players in estrogen-driven cancers

A new review maps how the endocrine-microbiome axis expands the estrobolome concept, showing that gut microbes may alter estrogen recycling, produce hormone-like metabolites, and shape inflammation and tissue environments in hormone-driven cancers. Human evidence remains mostly associative, so the authors call for causal models, longitudinal multi-omics, multi-kingdom profiling, and sex-stratified studies before microbiome-guided cancer strategies enter routine care.

25 Jun 2026

Synthetic gut communities reveal how diet rewires the microbiome

Synthetic microbial communities give researchers controlled models for testing how diet reshapes gut microbial ecology, metabolism, and host-relevant responses. The review highlights how SynComs can strengthen causal inference, improve intervention testing, and support future precision nutrition, while noting major challenges in stability, standardization, and ecological realism.

21 Jun 2026

Gut microbes may help explain why obesity and type 2 diabetes become harder to reverse

This review describes how gut microbial messengers, including SCFAs, microbiota-modified bile acids, neuroactive metabolites, and extracellular vesicles, may shape obesity and type 2 diabetes through the microbiota-gut-brain axis.

17 Jun 2026