Mackey Says the Protein Obsession Misses the Fiber Gap
Mackey challenges the cultural focus on maximizing protein and argues that deficiency is uncommon in ordinary American diets. He redirects attention toward fiber from vegetables, fruit, whole grains, beans, nuts, and seeds, while criticizing influencer-led protein messaging.
- More protein is not automatically better
- The body does not maintain an unlimited repository for surplus protein
- Fiber is absent from animal foods
- Plant foods supply both protein and fiber
“Have you ever heard of anybody having a protein deficiency?”
“Where do you get your fiber from? Because you will not get any fiber from animal foods.”