Diet Guide
Low Phosphorus Diet
When kidneys cannot filter phosphorus effectively, it builds up in the blood, weakening bones and damaging blood vessels. Managing phosphorus intake is critical in CKD stages 3–5 and dialysis.
Why phosphorus matters
Phosphorus works with calcium to build strong bones. Healthy kidneys remove excess phosphorus from the blood. In CKD, phosphorus accumulates, causing the body to pull calcium from bones (weakening them) and deposit calcium in blood vessels and soft tissues — a process called vascular calcification that raises cardiovascular risk.
Most CKD patients are advised to limit phosphorus to 800–1,000 mg per day. Your nephrologist may also prescribe phosphate binders to take with meals — these must be taken as directed to be effective.
Important: phosphate additives in processed foods
Inorganic phosphate additives (listed as "phosphate" in ingredients) are absorbed nearly 100% by the body — far more than natural phosphorus in whole foods. Avoiding processed foods with phosphate additives is one of the most impactful steps you can take.
Lower phosphorus — good choices
• White bread, white rice, pasta
• Corn and rice cereals
• Apples, berries, grapes
• Cabbage, green beans, cauliflower
• Egg whites (yolk is high)
• Chicken and fish (small portions)
• Rice milk (unenriched)
• Sherbet, popsicles
• Cream cheese, brie (small amounts)
• Lemon-lime soda, ginger ale
Higher phosphorus — limit or avoid
• Dairy (milk, yogurt, cheese)
• Nuts and nut butters
• Beans, lentils, peas
• Whole grains, bran cereals, oatmeal
• Chocolate and cocoa
• Cola and dark sodas
• Beer and ale
• Processed meats (hot dogs, deli meat)
• Fast food (often contains phosphate additives)
• Packaged foods with "phosphate" in ingredients
Practical tips
Take your phosphate binders
If prescribed, take binders with every meal and snack — not before or after. They bind phosphorus in food before it can be absorbed.
Choose white over whole grain
White bread, white rice, and regular pasta contain less phosphorus than whole grain versions because the outer bran layer (high in phosphorus) is removed.
Avoid dark colas
Dark sodas (Coke, Pepsi) contain phosphoric acid, a highly absorbable form of phosphorus. Choose lemon-lime sodas or water instead.
Read ingredient labels
Look for any ingredient containing "phos" — sodium phosphate, calcium phosphate, phosphoric acid. These additives are absorbed at nearly 100%.
Disclaimer: This guide is for general educational purposes only. Dietary needs vary by individual. Always consult your nephrologist or a registered renal dietitian before making changes to your diet.
Download this guide as a PDF
Print-ready, branded handout — bring it to your next appointment.
Questions about phosphorus management?
Our team monitors your phosphorus and calcium levels and can adjust your phosphate binder prescription as needed.