A reader, Thibault H writes : So Harvard University came out with a study that news reporters are saying tells us that those who tend to eat more potatoes gain x amount of weight over 10 years…What do you make of this?…could it be possible that potatoes themselves are not the culprit and rather those who tend to eat more potatoes have a fattier diet or perhaps more sedentary lifestyle.

See the article here:
Is It the Carbs or the Calories? New Study Pins Weight Gain on Potatoes