As a nutritionist, I can tell you that potatoes are not inherently fattening. However, the way they are prepared can significantly impact their caloric content and, therefore, their potential to contribute to weight gain. A medium-sized potato on its own contains about 164 calories and is a good source of vitamin C, potassium, and dietary fiber.

When potatoes are boiled or steamed without adding any fats, they are a relatively low-calorie food. But when they are fried, especially in oil, or smothered in butter, sour cream, cheese, or other high-calorie toppings, the calorie content can quickly increase, making them more likely to contribute to weight gain if consumed in large quantities.

It's also important to note that potatoes are a source of complex carbohydrates, which can provide energy and help with feelings of fullness when consumed in moderation as part of a balanced diet.

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Are Potatoes Fattening or Healthy? ... One medium-size potato with the peel, in particular, contains just 110 calories, more potassium than a banana, and almost half your daily vitamin C with no fat, sodium, or cholesterol.read more >>