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.