Ways to Eat Healthy. Choose the right carbohydrates. Simple carbs, like raw sugar or corn syrup, are quickly absorbed by the bodys digestive system. This causes a kind of carb overload, and your body releases huge amounts of insulin, to combat the overload. Cardiac Diet on this page. Eat these in moderation. Complex carbs, on the other hand, are slowly digested and absorbed by the body because they have at least three sugar molecules. They include whole grain flour, hearty vegetables, oats, and unprocessed grains, like brown rice. These foods are usually higher in vitamins and other nutrients that are beneficial for the body, and they are higher in fiber which keeps your digestive system running smoothly. Most Healthy Fish To EatWhat Are The Most Healthy Fish To Eat12 Fish You Should Never EatAnd What To Eat Instead This dirty dozen list is made up of the least sustainable, or even toxic, species. By Emily Main, By Rachel. Do koi eat other fish Do they eat goldfish Will they eat the eggs of other fish Find out more about what koi eat now. Take a look at our favorite recipes for light, delicious, and healthy seafood recipes.