What are some ways to reduce the risk of autism? According to published research, one of the most powerful interventions is for mothers to take folic acid around the time of conception. A recent meta-analysis of 10 studies found that folic acid supplementation reduced the odds of autism by about 42%. A large cohort study from Norway found an odds reduction of 49%, and some studies have even found reductions of more than 80%. These are massive effects.
