Sweet potatoes praised as anti-inflammatory carb when prepared right, dietitian says Anne Murray, a Texas-based registered dietitian, explains how skipping toppings such as marshmallows and butter and roasting with olive oil instead can turn sweet potatoes into a fiber-rich, anti-inflammatory side. NEW You can now listen to Fox News articles! Potatoes may not always get credit as a healthy food, but dietitians say they can be a nutrient-rich part of a balanced diet — and the healthiest options