These seeds get their striking black hue from anthocyanins, a type of phytochemical. And that’s a good thing: people who eat more anthocyanin-rich foods (including blueberries and black beans) are 15 percent less likely to be diagnosed with diabetes, according to a 2012 study by Harvard researchers. Give salmon a cool look and some crunch by coating it with the seeds, then pan-searing in a little olive oil.