The Strange Science of Eating Only Meat

The Carnivore Diet's Rise and Current Perception00:02

The carnivore diet exploded into mainstream popularity as advocates promoted it for athletic performance, body composition, and treating obesity, autoimmune diseases, and chronic illnesses. Prominent advocates reported being on the diet for up to 5 years, claiming they never imagined one could live solely on meat. However, the narrative has recently shifted, with some viewing carnivore as declining in popularity, partly because major advocates like Dr. Paul Saladino (Carnivore MD) have reintroduced fruits and plant foods.

The Lion Diet Experiment01:31

After previously following a liberal carnivore diet for 5 months that included dairy, eggs, and coffee, the speaker decided to try the strictest version—the lion diet—for 30 days. This meant consuming only meat, salt, and water with no dairy, eggs, seafood, coffee, or organ meats. The experiment involved eating over 100 lb of meat during the month, serving as one data point to explore the diet's effects and broader implications.

Gut Health: Constipation and Fiber Elimination02:31

Contrary to expectations, the 30-day lion diet did not cause constipation. The speaker pooped every single day, with bowel movements becoming nearly perfect by the end. This aligns with published literature, including a 2012 study in the World Journal of Gastroenterology showing that eliminating dietary fiber in people with irritable bowel syndrome with constipation improved bowel frequency from one movement every 3.75 days to daily, while completely eliminating bloating and straining. The study found a dose-dependent effect where more fiber consumption worsened symptoms.