They obviously have some agenda or why would they bother collecting the data in the first place. The food pyramid scientists were the tops (from top research institutions) in their field. I am sure they presented some data to back up their claims. More than 60 yrs later we learned they were paid off by one segment of the food industry to malign a competitor. Their actions harmed the health and economy of billions of people. No small thing that effects our lives even today.