| Attention-deficit hyperactivity disorder (ADHD) is common in children and teens; almost 10 percent (6 million) have been diagnosed with this condition. Many complementary approaches have been studied for ADHD, but none has been conclusively shown to be more effective than conventional therapies. Dietary supplements that have been studied for ADHD include omega-3 fatty acids, Pycnogenol (French maritime pine bark), Ginkgo biloba, and St. Johnâs wort. There isnât enough evidence to allow definite conclusions to be reached about whether these supplements are helpful. A caution on St. Johnâs wort: this herb interacts in harmful ways with many medicines. Limited evidence suggests that melatonin supplementation may be helpful for sleep problems in children with ADHD. Melatonin appears to be safe for short-term use, but its long-term safety is uncertain. Aerobic exercise, including yoga, has small-to-moderate beneficial effects on ADHD symptoms. Itâs unclear whether meditation is helpful. | 