Lifelong Sulforaphane Intake Shows Promise in Improving Autism-Related Behaviors and Brain Chemistry in Mouse Model

October 7, 2026 2 Min Read

Study Explores Sulforaphane’s Impact on Autism Spectrum Disorder Traits

Researchers have investigated the effects of continuous dietary intake of sulforaphane (SFN), a natural compound known for its antioxidant and anti-inflammatory properties, on behavioral and biochemical abnormalities associated with autism spectrum disorders (ASD). The study focused on BTBR T+ Itpr3tf/J (BTBR) mice, a widely used animal model that exhibits ASD-like characteristics.

Behavioral Improvements Observed in Both Male and Female Mice

BTBR mice of both sexes were fed either a standard diet or one enriched with SFN throughout their lives. Various behavioral assessments—including self-grooming, marble burying, hole board, open field, and social interaction tests—were conducted. Mice receiving the SFN-enriched diet demonstrated reduced repetitive behaviors and enhanced exploratory activity. Notably, social interaction skills also improved, suggesting a broad beneficial effect of SFN on ASD-like behaviors.

Sex-Specific Neurochemical Changes Detected

The study revealed that SFN intake modulated neurochemical pathways differently in males and females. In male BTBR mice, SFN reduced alterations in cortical serotonin, noradrenaline, and kynurenine pathways—systems often implicated in ASD. Both sexes showed increased levels of NRF2, a key protein involved in cellular antioxidant responses, along with higher activity of antioxidant enzymes such as haem oxygenase-1 and superoxide dismutase 1.

Reduction in Oxidative Stress and Inflammation

SFN supplementation was linked to decreased oxidative stress markers, particularly in males, where reactive oxygen species production was lowered. Glutathione levels, a major antioxidant, were elevated in females. Additionally, SFN normalized levels of proinflammatory cytokines—including IL-6 and TNF-α—in both the brain and blood. Male mice also exhibited reductions in IL-1β and IL-17A, cytokines associated with neuroinflammation.

Implications for Personalized ASD Therapies

The findings suggest that lifelong consumption of sulforaphane may alleviate behavioral and molecular dysfunctions related to ASD, with some effects varying by sex. This highlights the potential for SFN to be considered in sex-specific preventive or therapeutic strategies for ASD.

Considerations and Future Directions

While the results are promising, it is important to recognize that this research was conducted in a mouse model, and direct translation to humans requires further study. The complex nature of ASD and variability among individuals mean that SFN’s efficacy and safety in people remain to be established through clinical trials.

For more detailed information, see the original research publication: Effects of lifelong sulforaphane intake on behavioural, neurochemical and biomolecular dysfunctions in the BTBR T+ Itpr3tf/J mouse model of autism spectrum disorders.