People with mood disorders or autoimmune disorders or idiopathic disorders that have no other place to turn to, should think seriously about trying this, and being strict. There is evidence from thousands of anecdotal stories and a number of case studies that eating only ruminant meat can heal leaky gut. There is evidence that everything other than ruminant meat can contribute to a leaky gut, particularly if the gut is already damaged. Normally people should be fairly resilient to what they are eating. They should be able to eat plants and fruits without having a leaky gut. However, once the gut is damaged it can be difficult to heal it without removing potentially inflammatory components (plant food and meat that isn’t from a ruminant animal).