7. Bitter Chocolate
Bitter chocolate, which has an antioxidant effect, just like green tea, pomegranate juice and citrus fruits, is among the foods that help with memory impairment. Also, it increases concentration and provides energy since it contains caffeine. But, in order to make use of benefits of the chocolate, you should eat bitter chocolates that contain 50-70% cacao. Too much chocolate can cause harm that is why experts state that eating 10-15 grams of chocolate is sufficient.
