Several therapies and strategies have strong evidence for helping people with autism, and the most effective approach usually combines more than one. Behavioral therapy, speech and occupational therapy, social skills training, regular exercise, and in some cases medication can all make a meaningful difference in daily functioning, communication, and quality of life. What helps most depends on the person’s age, specific challenges, and support needs.
Behavioral Therapy
Applied Behavior Analysis (ABA) is the most widely studied behavioral intervention for autism. It breaks skills down into small, teachable steps and uses reinforcement to build communication, self-care, and social abilities. Early Intensive Behavioral Intervention (EIBI), a form of ABA designed for young children, is typically delivered at 20 to 40 hours per week over multiple years, often starting with one-on-one sessions at home or school.
The outcomes vary considerably depending on where a child starts. In one large study published in the Journal of Developmental and Behavioral Pediatrics, children with the lowest adaptive skills at baseline made the most clinically significant gains, improving by an average of 9 points on a standardized measure of everyday functioning over 24 months. Children who already had moderate or higher skills showed smaller or no measurable gains from ABA, suggesting the therapy is most transformative for those who need the most support.
Sticking with therapy long enough matters but proves difficult for many families. About two-thirds of children referred for ABA stayed in services for 12 months, and fewer than half made it to 24 months. Only 28% received what clinicians consider a full dose. Even so, children with the greatest needs still improved significantly, which suggests that some ABA is better than none for this group.
Speech and Communication Support
Speech-language therapy targets both verbal and nonverbal communication. For children who are verbal, this can mean expanding vocabulary, improving conversational turn-taking, and learning to interpret tone of voice. For those who are minimally verbal or nonverbal, the focus shifts to building any reliable way to communicate, whether through spoken words, gestures, or technology.
Augmentative and Alternative Communication (AAC) tools, including picture-exchange systems and tablet-based speech apps, give nonverbal individuals a way to express needs and ideas. A common concern among parents is that using a device will replace speech, but research consistently shows no evidence that AAC reduces existing speech skills. In fact, sign language has been associated with increased vocalizations compared to picture-based systems alone. The key limitation is that gains from structured AAC training sometimes don’t carry over well to new settings or new conversation partners, so practicing communication in real, everyday situations matters more than clinic sessions alone.
Occupational Therapy and Sensory Support
Many people with autism experience sensory input differently. Sounds, textures, lights, or movement can feel overwhelming or, in some cases, underwhelming. Occupational therapy (OT) helps people participate more fully in daily life by addressing these sensory differences along with fine motor skills and self-care tasks like dressing and eating.
Sensory integration therapy, a specific type of OT, uses play-based activities like swinging, jumping, and brushing to help the brain process sensory information more effectively. Studies using structured sensory programs have shown positive effects on self-regulation, meaning a person’s ability to manage their own emotional and physical responses to their environment. Other OT approaches teach self-regulation strategies directly, giving children and adults tools to recognize when they’re becoming overwhelmed and techniques to calm themselves down. The overall goal is practical: being able to handle a grocery store trip, sit through a class, or tolerate wearing certain clothes.
Social Skills Training
Difficulty reading social cues and building friendships is one of the core challenges of autism, and it doesn’t resolve on its own with age. Structured social skills programs teach these abilities explicitly, the way you might teach math, rather than expecting people to absorb them naturally.
The PEERS program (Program for the Education and Enrichment of Relational Skills), developed at UCLA, is one of the most studied. It teaches adolescents concrete skills like how to enter a group conversation, handle disagreements, and choose appropriate social activities. Sessions include role-playing and weekly homework assignments where teens practice skills in real life, while a parallel parent group helps caregivers support practice at home. In clinical trials, adolescents who completed PEERS showed significant improvements in social engagement, social communication, and social motivation. They also showed reductions in anxiety and internalizing symptoms, which makes sense: feeling more competent socially tends to reduce the stress surrounding it.
Exercise and Physical Activity
Regular physical activity is one of the most accessible and underutilized tools for managing autism-related challenges. Research published in Frontiers in Psychiatry found that 12 to 24 weeks of aerobic exercise or combined aerobic and resistance training, performed three to five times per week for 20 to 40 minutes at moderate intensity, reduced repetitive behaviors like hand flapping and spinning by 40 to 60%. It also decreased distractibility and improved sustained attention during tasks.
Even single bouts of low-to-moderate intensity exercise can reduce stereotyped behaviors for up to an hour afterward, which is useful to know if you’re looking for strategies before a challenging transition or a demanding activity. Current recommendations for children and adolescents with autism suggest moderate-intensity aerobic exercise such as brisk walking, swimming, cycling, or yoga, broken into 10 to 15 minute sessions three times a day, five days per week, combined with resistance training twice weekly using elastic bands or bodyweight exercises. The specific activity matters less than consistency and enjoyment.
Medication
No medication treats autism itself, but medication can help manage specific symptoms that interfere with daily life. The FDA has approved two medications specifically for irritability associated with autism: risperidone (for ages 5 to 16) and aripiprazole (for ages 6 to 17). Irritability in this context includes aggression, self-injury, and severe tantrums.
These medications can be effective for those specific symptoms, but they come with side effects including weight gain and drowsiness, so they’re typically considered when behavioral strategies alone aren’t enough. Doctors also sometimes prescribe other medications off-label to address co-occurring conditions like anxiety, ADHD, or sleep problems, which are common alongside autism. Medication works best as one part of a broader plan that includes therapy and skill-building, not as a standalone solution.
Diet and Supplements
Gluten-free and casein-free (GFCF) diets are among the most popular complementary approaches parents try. A meta-analysis in Nutrition Reviews found that removing gluten and casein from a child’s diet produced small but statistically significant reductions in repetitive behaviors and modest improvements in cognition. However, the diet had no measurable effect on communication or social interaction, which are the areas most families are hoping to improve. The studies were also mostly single-blinded, meaning families knew which diet their child was on, which can influence how they rate behavior changes.
Omega-3 fatty acid supplements have shown some promise in individual cases, particularly for hyperactivity and inattention. Case reports describe improvements in responsiveness, communication, and activity levels at doses of about 1 gram per day, with symptoms worsening when supplementation was stopped and improving again when it resumed. These are encouraging observations, but they come from small studies and case reports rather than large controlled trials, so the evidence is not yet strong enough to make a general recommendation. If you’re considering dietary changes or supplements, working with a healthcare provider helps ensure nutritional needs are still being met, especially for children who already have a limited diet.
Why Combining Approaches Works Best
Autism affects communication, sensory processing, social interaction, and behavior in varying combinations and intensities. No single therapy addresses all of these areas. The strongest outcomes tend to come from combining approaches: behavioral therapy to build foundational skills, speech therapy to develop communication, occupational therapy to manage sensory challenges, social skills training to build relationships, and regular exercise to support attention and reduce repetitive behaviors. Starting early gives children more time to build skills during critical developmental windows, but older children, teens, and adults also benefit meaningfully from these interventions. The most important factor isn’t finding one perfect treatment. It’s building a combination that fits the individual person’s needs and is sustainable enough to maintain over time.