I am no medical researcher but I don't think 4000 people is enough to really be accurate. Also not all french fries are the same. McDonalds fries are said to have 19 ingredients. Do you really need more than potatoes, oil and salt? And what are the sources and quality of those ingredients? Just because someone announces in the news that some kind of food is bad does not make it true. Years ago they told us butter was bad and margarine is good. Eggs are bad but cereal is good. Both were lies.