Medically reviewed by Sara Osman,RD,PT
Introduction
Phosphorus is the second most abundant mineral in the human body and makes up about 1-1.4% of fat-free mass [1,5,6].
It is present in every cell of the body and plays an important role in how the body uses carbs and fats.
It is also a component of the bones, teeth, DNA, and RNA [1].
Phosphorus additives are widely used in many foods to preserve moisture or colour or even stabilise frozen foods. These foods naturally contain a lot more phosphorus per serving than natural food sources and play a role in maintaining the normal reserves in the body [1]
- Normally, phosphorus absorption rates vary between 40 and 70% in the small intestine and the mineral is absorbed more efficiently from animal sources than plant sources [1].
- 85% of phosphorus reserves are stored in bones and teeth and the remaining 15% distributed throughout blood & soft tissues [1,2].
- Total body phosphorus stores in adults have been estimated to be around 400–800 g [5].
- Excretion is through urine and regulated by the kidneys [2].
- Also, faecal excretion of phosphorus is estimated to be around 300 to 600 mg/day [5].
Body Functions
Recommended Daily Intake
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Deficiency Symptoms
Phosphorous Food Sources
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Excessive Intake/ Toxicity Side Effects
Groups At Risk of Phosphorous Deficiency
Phosphorous Interaction With Other Nutrients
- Calcium – Unabsorbed calcium in the digestive tract combines with phosphorous and interferes with its digestion and absorption [2].
- Aluminium – When taken in large doses, antacids that contain aluminium may interfere with phosphorus absorption[2].
Nutrient Profiles For Food Groups
Medically reviewed by Sara Osman,RD,PT
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