Education, Video Insulin Resistance: Friend or Foe? – Ric Grummer, PhD. Insulin Resistance: Friend or Foe? Dr. Grummer presented at the recent Cornell Nutrition Conference breakfast. Share this page Share on FacebookShare on Facebook TweetShare on Twitter Share on LinkedInShare on LinkedIn Post navigationPreviousPrevious post:ReaShure The Movie – German VersionNextNext post:The Power of Protection – Encapsulated Nutrients