They're only nutritious if you eat the skin. If you peel them (like McDondald's does with their fries) then they're just empty carbs.
That's an urban legend, most of what you lose in the skin is fiber. The skin and the interior of the tuber both contain all your micronutrients
https://potatogoodness.com/potato-nutrition-in-skin-vs-flesh/
Cooking potatoes with skin is still somewhat more nutritious than cooking them without (unless you're keeping the water for something else, some use it for stuff like pasta)
Tastier, too, IMO
They're only nutritious if you eat the skin. If you peel them (like McDondald's does with their fries) then they're just empty carbs.
That's an urban legend, most of what you lose in the skin is fiber. The skin and the interior of the tuber both contain all your micronutrients
https://potatogoodness.com/potato-nutrition-in-skin-vs-flesh/
Cooking potatoes with skin is still somewhat more nutritious than cooking them without (unless you're keeping the water for something else, some use it for stuff like pasta)
Tastier, too, IMO