Grilled potatoes potatoes are a great source of nutrients and are packed full of vitamins and minerals. According to Deidre Huysamen, potatoes are high in fibre, vitamin C, vitamin B6, potassium, manganese, vitamin B3, phosphorus, magnesium, and vitamin B9 They are also a good source of energy through their content of carbohydrates and vitamin C, which is essential for our immune system, according to María F. Carzon. Potatoes are naturally fat-free, cholesterol-free, and low in sodium. They are an excellent source of vitamin C, and those eaten with the skin are a good source of potassium, which may reduce the risk of high blood pressure and stroke, according to the National Potato Council. One medium-size potato a day can be good for one’s health, and this amount doesn’t increase cardiometabolic risk. Adding more can lead to weight changes.