Which of the following foods is high in phosphorus?

The correct answer is based on the fact that cereals, dairy products, and soft drinks are indeed high in phosphorus. Phosphorus is an essential mineral that plays a critical role in many bodily functions, including the formation of bones and teeth, energy production, and the synthesis of DNA.

Cereals often contain a significant amount of phosphorus, particularly processed versions that may have added phosphorus compounds for enhancing flavor or conservation. Dairy products are also known to be rich in phosphorus, as they are sources of casein and whey proteins, both of which contain substantial amounts of this mineral. Interestingly, many soft drinks, especially colas, are high in phosphorus due to the presence of phosphoric acid, which is added for flavor.

Understanding the dietary sources of phosphorus is crucial, especially since inadequate or excessive intake can have implications for health, including bone density and kidney health. Foods from the other listed categories, while they may contain phosphorus, generally do not deliver it in high enough quantities compared to cereals, dairy, and soft drinks.