Cod liver oil is a source of vitamin D.

• A. True
• B. False
• C. Not sure
• D. None of the above

Answer: (A)

Cod liver oil is a natural source of vitamin D because it contains this fat-soluble vitamin in appreciable amounts. Vitamin D from cod liver oil helps the body absorb calcium in the gut, supporting bone health and mineralization. A typical serving provides a substantial portion of the daily vitamin D intake, though exact amounts vary by product. It’s worth noting that cod liver oil also contains vitamin A, so while it contributes to vitamin D intake, dosing should be mindful to avoid excessive vitamin A. In short, yes—cod liver oil does supply vitamin D.