L-Glutamine

Is there any proof that (L) glutamine will help whit any stomach problem like

  1. irritable bowel syndrome (IBS)
  2. an inflammatory bowel disease like Crohn’s disease
  3. ulcerative colitis
  4. diverticulosis
  5. diverticulitis
  6. leaky gut or any of the issues associated with leaky gut (like joint pain, rosacea or any type of autoimmune response) ​​

Not via oral supplementation, no.