Cod liver oil

Cod liver oil contains phosphorus, iodine, Vitamin A, Vitamin D, and omega-3 fatty acids. Cod liver oil is extracted from fish such as cod, haddock, and halibut.

Vitamin A helps maintain normal mucous membranes. Vitamin D, among other things, plays a role in bone formation and in the immune system. EPA and DHA are important building blocks for the brain, play a role in brain function, and are beneficial for vision (with a daily intake of 250 mg EPA and DHA).