[1] Makes elimination faster, easier and more complete. This helps prevent “fecal stagnation,” a prime factor in colon cancer, appendicitis and inflammatory bowel disease.
[2] Protects the nerves that control the prostate, bladder and uterus from becoming stretched and damaged.
[3] Securely seals the ileocecal valve, between the colon and the small intestine. In the conventional sitting position, this valve is unsupported and often leaks during evacuation, contaminating the small intestine.
[4] Relaxes the puborectalis muscle which normally chokes the rectum in order to maintain continence.
[5] Uses the thighs to support the colon and prevent straining. Chronic straining on the toilet can cause hernias, diverticulosis, and pelvic organ prolapse.
[6] A highly effective, non-invasive treatment for hemorrhoids, as shown by published clinical research.
[7] For pregnant women, squatting avoids pressure on the uterus when using the toilet. Daily squatting helps prepare one for a more natural delivery.

http://www.naturesplatform.com/health_benefits.html#antiquity