Bone and teeth
Most body phosphorus is stored with calcium in bones and teeth.
Phosphorus
MineralPhosphorus helps build bones and teeth and is also part of ATP, DNA, and cell membranes.
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What it is
What Is Phosphorus?
Phosphorus helps build bones and teeth and is also part of ATP, DNA, and cell membranes.
You do not need to memorize a nutrient chart. The useful part is knowing where it shows up in food, roughly how much you need, and what that can look like on an actual plate.
What the body uses it for
What Phosphorus Actually Does
ATP
Phosphate groups are central to cellular energy transfer.
DNA and RNA
Phosphate forms part of the backbone of nucleic acids.
Cell membranes
Phospholipids are major structural components of cell membranes.
How much you need
How Much Do You Need?
Recommended amounts depend on the nutrient, age, sex, and life stage. Some compounds do not have an established Dietary Reference Intake.
Use the authoritative source below for the current RDA, AI, upper limit, or other guidance that applies to Phosphorus.
See current intake guidance →Food sources
Where Phosphorus Shows Up in Food
You do not need to memorize this list. These are everyday examples of foods that can contribute Phosphorus. Amounts can change with serving size, variety, preparation, and fortification.
Dairy foods
Meat and fish
Beans
Nuts and seeds
Whole grains
Food composition reference: USDA FoodData Central.
Make it useful
What Does That Look Like on a Plate?
Knowing what is in your food is useful. Knowing what to do with it is better. Pick a food. Find a recipe. See what you already have. Plan the meal. Buy what is missing. Then go eat food.
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A little context matters
When More Isn't Better
People with chronic kidney disease may receive individualized phosphorus guidance. Phosphate additives can contribute substantially to intake in some processed foods.
Food and supplements are not the same thing. Supplements can deliver much larger doses. Medications, pregnancy, kidney or liver function, allergies, and other health circumstances can change what is appropriate.
Evidence & trusted sources
Where This Information Comes From
NIH Office of Dietary Supplements – PhosphorusPrimary nutrient reference
USDA FoodData CentralFood composition and nutrient data
Evidence last reviewed: October 2026
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