An apparatus for assisting a person in assumption of a squat position for evacuations when using a toilet, the apparatus including a platform adapted to raise a user's feet from the ground surface, and at least one foot member, each having an opening therein to at least partially receive a portion of the toilet or bowl, and at least one height adjustment assembly to adjust the height of the platform above the at least one foot member, the height adjustment assembly including an upper leg mounted to the platform, a lower leg mounted to the at least one foot member for slidable movement relative thereto, a resilient separator to bias the platform and the at least one foot apart, and a locking mechanism to at least temporarily lock the upper leg relative to the lower leg to fix the height of the platform.