Potatoes HealthBites: Potatoes are a veggie that is loaded with a special type of starch known as resistant starch. It reaches the large intestine where it becomes an essential food source for the beneficial bacteria in your gut. Resistant starchy foods reduce insulin resistance which improves your blood sugar control. If you want to up the resistant starch in white potatoes, store boiled potatoes in the fridge overnight, then eat them cold the next day. Resistant starch also will improve your digestive health—it can reduce inflammation in your colon, strengthen its defenses and reduce your risk for colon cancer.