A dietitian shares 6 snacks that’ll help you keep your brain sharp

Keep these brain food snacks in your cupboard if you want to feed your mind. Meanwhile, an unhealthy diet filled with heavily processed foods — foods with refined grains and excess added sugar or sodium — may speed up brain aging. Unfortunately, many common snacks — from pretzels to chips to bars — fall in this camp, so swapping your snack for healthier fare is one way to stay sharp as you age.