Is this about…?
This is already awkward. Don’t interrupt.
“Judaism” includes health. “Health” is intangible and unmeasurable, however. Saving study time motivates more: A colon less bent is less time spent. When the human plumbing anatomy is unbent, gravity can do its job. (“|” angle, not “>”; read a health book).
Sitting cross-legged on a hole in the ground is best, including for Tznius. If using a modern toilet, use a stool to raise your feet (or get Squatty Potty®). At least put one foot on the other thigh (whatever’s easier for using the left hand, Shulchan Aruch O.C. 3:10). If you can dress in robes and construct facilities like in Persia, even better.
And the older you are, the healthier and the more time saved, avoiding prunes, etc.
Also, the easier to evacuate, the easier in general (the diet matters less). Shulchan Aruch O.C. 3:9:
לא ישב במהרה ובחוזק ולא יאנוס לדחוק עצמו יותר מדאי, שלא ינתק שיני הכרכשתא.
The site isn’t for women, but Wikipedia says squatting avoids pressure on the uterus and is better muscle training for delivery.
Disclaimer: I don’t have medical training.