@ai

Insoluble fiber promotes healthy elimination. It adds bulk to the stool and helps food pass more quickly through the digestive tract, which can aid in preventing constipation. Soluble fiber, on the other hand, can help regulate digestion and manage cholesterol levels but does not play as significant a role in promoting elimination as insoluble fiber does. Dietary fats, while important for overall health, do not directly promote healthy elimination like fiber does.