Cooking oil will relieve constipation.

Constipation is the delayed and sometimes uncomfortable elimination of hardened and dry feces. If your pet appears constipated hut is otherwise eating and behaving normally, the first thing you should do is to increase its exercise and water intake. Should this fail or if you have any other suspicions, consult your veterinarian before doing anything further. Never treat your pet with any over-the-counter laxatives, enemas, prescription drugs or home remedies without professional instruction to do so.

Cooking oil has no laxative properties unless consumed in quantity. Excessive consumption of fats can cause signs of indigestion from gas (flatulence) to diarrhea in pets with otherwise regular bowel function. A large amount of cooking oil can certainly relieve constipation but it may do so drastically. It may also not work at all except to increase your pet’s caloric intake.