Probiotics may be helpful for digestive problems that can occur in some children with autism.

Probiotic therapy involves taking supplements or foods that contain "good bacteria" that live and thrive in a healthy gut. The two most common good bacteria are Lactobacillus and Bifidobacterium. This review article describes how some people do not have enough good bacteria in their guts and may be helped by probiotic therapy. People with autism who also have gut problems (gas, bloating, diarrhea, inflammatory bowel disease) may find probiotic therapy very helpful. Probiotics may also be helpful for a broad range of health issues, such as diabetes, obesity, and allergies.