Xylitol May Improve Verbal Skills in Children with Autism: Study Finds

AMERICAN FORK, Utah, Oct. 6, 2026 /CourierPR/ -- Xlear, a company known for its xylitol-based oral care products, has sparked new interest in the potential of xylitol to impact more than just oral health. A recent study, published in the journal *Neurosci*, has revealed that xylitol, a sugar substitute commonly used in toothpaste and mints, may have broader health implications, particularly for children with autism spectrum disorder (ASD).

The study, which included 30 participants with ASD and 60 neurotypical controls, aimed to explore the effects of xylitol on the oral microbiome. Researchers observed that six of the 30 participants with ASD experienced significant improvements in verbal skills following the xylitol intervention. Additionally, three participants showed verbal improvements after probiotic supplementation.

Xylitol, a natural sweetener found in fruits and vegetables, has been studied for decades for its ability to reduce cavity-associated bacteria. Unlike ordinary sugars, xylitol is poorly fermented by many cavity-causing bacteria, making it a valuable tool in oral hygiene. The study highlights the potential of xylitol in managing and supporting a healthy microbial community in the mouth, a concept that could have far-reaching implications for overall health.

During the 60-day intervention, participants used Spry® xylitol toothpaste, xylitol suckers or mints, and xylitol mouth rinse, targeting approximately five grams of xylitol per day. The findings suggest that changing the microbial environment of the mouth could influence biological processes elsewhere in the body, potentially extending beyond dental health.

The American Heart Association's 2025 scientific statement emphasizes the connection between poor oral health and systemic conditions such as cardiovascular disease. The statement identifies *Porphyromonas gingivalis* as a periodontal pathogen that can enter the bloodstream and contribute to vascular inflammation and endothelial dysfunction. This adds to the growing evidence that oral health influences systemic health and should be investigated further.

While the study does not establish that xylitol prevents, treats, or improves autism spectrum disorder, it raises important questions about the potential of xylitol and the oral microbiome in influencing whole-body health. The implications could extend far beyond dentistry, potentially leading to new approaches in managing and supporting a healthy microbial ecosystem in the mouth.

The research underscores the need for further investigation into the relationship between oral health and overall well-being, particularly in populations such as those with ASD.