Walnuts are round, shaped like our human brain. Therefore, it is best source of food to boost our brain. They may enhance heart and bone health and help in weight management, among other benefits.
Health benefits of Walnts - 
They can benefit brain health.
Support a healthy digestive system.
May reduce risk of some Cancers.
May help manage type 2 Diabetes and lower your risk.
May help lower blood pressure.
You can consume 2-3 walnuts per day.