Cheese and milk are notable primary sources of phosphorus in the typical diet. For example, just 1 oz (28 g) of Romano cheese supplies 215 mg of phosphorus (17% of the Daily Value), while 1 cup (244 g) of skim milk adds up to 21% of the Daily Value.
In cattle, the majority of phosphorus is eliminated through feces (comprising 69% of the total), with roughly 30% being excreted through milk and only about 1% through urine. This stands in contrast to carnivores, where urine serves as the primary avenue for phosphorus excretion.
Similar to other minerals in the human body, phosphorus serves diverse essential functions, such as generating energy for the body's fuel, producing DNA and RNA (the fundamental building blocks of genes), and aiding in the growth and repair of tissues and cells. Alongside calcium, phosphorus plays a pivotal role in constructing robust, healthy bones and sustaining overall bodily well-being. It is involved in every metabolic reaction and energy transfer within the body, supporting regular milk production, growth, and the effective use of feed by rumen microorganisms during the digestion of cellulose and the synthesis of microbial protein.
While milk and yogurt feature a substantial phosphorus content, consuming one serving daily does not notably affect the total dietary phosphorus intake. It is advisable to restrict intake to no more than one serving per day.
Dairy and Phosphorus Overview
