Answer: Potatoes are not keto, as they're too high in carbs.
As much as we love our french fries, potatoes are not keto-friendly. They are very starchy, which means they carry a very high carb content.
One medium potato contains 33 g of net carbs. For many keto eaters, this alone is enough to exceed their daily carb limit.
As a general rule, most vegetables that grow underground are not keto-friendly. For a keto-friendly potato substitute, consider rutabaga or cauliflower.