Sweet Potato Fries are gluten free, low in saturated fat and a low salt alternative to traditional oven chips. Really convenient and ready in 25 minutes. Sweet Potato Fries are gluten free, low in saturated fat and a low salt alternative to traditional oven chips. Really convenient and ready in 25 minutes and the perfect along side our Turkey Burgers Sweet potatoes are a great non-starchy carb, so count towards our 5-a-day tally, plus they contain more vitamin C than regular potatoes, which our bodies need and utilise every day.