Description Cod liver oil is used as a source of vitamin A and vitamin D, and to treat high cholesterol and high triglyceride levels, kidney disease in people with diabetes, high blood pressure, heart disease, osteoarthritis, rheumatoid arthritis, depression, an autoimmune disease called systemic lupus erythematosus (SLE), glaucoma, and middle ear infections (otitis media). It is also used to prevent respiratory infections, and an age-related eye condition called macular degeneration.
