Seaweed may help prevent Parkinson’s disease, a study suggests. Scientists believe Ecklonia cava, a type of brown algae, could protect against the neurodegenerative disorder. Research indicates that antioxidants in this seaweed may reduce the risk of Parkinson’s by controlling levels of harmful free radicals. Further studies have shown improvements in motor function in mice treated with these antioxidants. The findings suggest that Ecklonia cava could potentially be used to prevent Parkinson’s disease.