I could have told them this:
Guidelines warning people to avoid eating fatty foods such as butter and cheese should not have been introduced, new research has found.
Dietary advice issued to tens of millions warned that fat consumption should be strictly limited to cut the risk of heart disease and death.
But experts say the recommendations, which have been followed for the past 30 years, were not backed up by scientific evidence and should never have been issued.
Cholesterol hysteria is bull, too.
But, of course, global warming is real because of scientific studies.
Anything is bad for you if you have too much of it (except, possibly, coffee). Most "real" foods are healthy in amounts that do not lead to excessive weight. Kind is much less important than amount.