How long can you survive eating only potatoes?

You cannot survive on a potato mono-diet for long. Potatoes provide some essential nutrients like carbohydrates, vitamin C, and potassium, but they are deficient in other essential nutrients such as protein, certain amino acids, essential fats, vitamins, and minerals. Prolonged consumption of a diet solely consisting of potatoes can result in severe malnutrition, nutritional deficiencies, and numerous health problems.