Why is mash potato bad for you?

Mashed potato is not inherently bad for you, it's a healthy food made from boiled potatoes. However, it can become unhealthy depending on how it is prepared. For example, adding too much butter, cream, or salt can increase the calorie and fat content of the dish, making it less nutritious. Additionally, fried mashed potatoes contain more calories and fat than boiled mashed potatoes.