A study of two young individuals fed only potatoes, a little fat, and fruit for six months showed maintained nitrogen balance, no diabetes, and no weight gain.

“And a Polish group of two Polish scientists in 1928 published a paper in which they had two young people. They never said they were the young people, but I kind of suspected perhaps they were, one man, one woman. And for 6 months, they fed them nothing but potatoes, a little bit of fat to cook the potatoes in, and a little bit of fruit to avoid deficiencies. So the only source of protein for practical purposes was the potato. And what they showed was nitrogen balance was perfectly fine. And despite sort of this quote unquote bad carbohydrate, at least some people think it's a bad carbohydrate, no one got diabetes. They didn't get they didn't gain weight.”