…at least according to researchers in Denmark who did a review of the scientific literature.
“The identified studies do not provide convincing evidence to suggest an association between intake of potatoes and risks of obesity, type 2 diabetes, or cardiovascular disease. French fries may be associated with increased risks of obesity and type 2 diabetes although confounding may be present. In this systematic review, only observational studies were identified. These findings underline the need for long-term randomized controlled trials.”
Source: Potatoes and risk of obesity, type 2 diabetes, and cardiovascular disease in apparently healthy adults: a systematic review of clinical intervention and observational studies