Cholecystitis and cholelithiasis often occur in patients with biliary tract diseases. Because the digestion of chicken oil needs bile to participate, too much chicken oil will stimulate gallbladder contraction and easily lead to cholecystitis.
People with hyperacidity should not eat more, because chicken oil can stimulate the secretion of gastric acid, and patients with gastric ulcer, hyperacidity or gastric bleeding should generally not eat more.
People with renal insufficiency should not eat more, because chicken oil contains some small molecules from protein. Patients with acute nephritis, acute and chronic renal insufficiency or uremia, because their liver and kidney can not deal with protein decomposition in time, eating too much chicken oil will cause excessive blood nitrogen and aggravate the condition.
Of course, I may be paranoid. Under normal circumstances, it is unlikely to eat too much chicken oil unless your family runs a chicken farm. Proper consumption of chicken oil can stimulate appetite and be beneficial to health.