Clinical Research Directory

Inclusion Criteria: * Those who have been diagnosed with autistic spectrum disorder aged 18\~50 years old * Those whose primary contacts or caregiver (including family members or teachers) are willing to participate * Those whose primary contacts or caregivers can understand Mandarin and can answer relevant questions or questionnaires. Exclusion Criteria: * Have taken antibiotics or are receiving antibiotic treatment within one month. * Have used probiotic products in powder, capsule or tablet form within two weeks (excluding yogurt, Yakult and other related foods). * Patients who have undergone hepatobiliary gastrointestinal surgery (except for colorectal polypectomy and appendectomy). * Past or current patients with inflammatory bowel disease. * Those with a history of cancer. * Those who are allergic to lactic acid bacteria products. * Those who are receiving parenteral nutrition. * Those who are evaluated by the principal investigator to be unsuitable to participate in the research.