Like any type of salad, it depends on what you put in it. Tuna poke bowls can be customized in several ways to be as healthy as you want them to be, by substituting rice for zucchini noodles or even by substituting the fish for tofu. Some folks even use brown rice instead of white. But by themselves in the classic recipe, tuna poke bowls have several health benefits due to the nutritional content of ahi tuna.