RenalShield

1. Why your diet plan is personal

Sodium, potassium and phosphorus all matter when kidneys don't work well. But the right amounts are different for each person. Some people need less potassium; others don't need to limit it at all. Your blood tests guide this. [1][2]

Ask your nephrologist or renal dietitian what your targets are.

2. Hidden phosphorus: look at the ingredients

Phosphorus comes in two main kinds:

• Natural phosphorus in meat, beans, nuts and grains. Your body takes in only part of it, especially from plant foods like seeds and beans. [3]
• Phosphate additives put into processed foods. Your body absorbs much more of these than the phosphorus found naturally in food. [3][4]

Additives often have "phos" in the name: sodium tripolyphosphate, dicalcium phosphate, phosphoric acid. They show up in processed meats, colas, boxed mixes and some frozen foods. The Nutrition Facts panel often doesn't list phosphorus, so the ingredient list is your best clue. [3][4][5]

Early evidence: researchers think high phosphorus from additives may add to blood-vessel hardening, but this hasn't been proven in trials. [3]

Ask your nephrologist or renal dietitian how much phosphorus you should aim for.

3. Hidden potassium and salt substitutes

Many "low sodium" or "reduced sodium" meats and poultry swap salt for potassium additives (look for potassium chloride, potassium lactate, potassium phosphate). [6][4][7] Many salt substitutes are also high in potassium, and the National Kidney Foundation says most people with kidney disease should not use them. [11] Season with herbs, garlic, onion, citrus zest or vinegar instead of reaching for a salt substitute.

Ask your nephrologist or renal dietitian whether you need to watch potassium.

4. Thirst and fluid limits on dialysis

About 800,000 people in the U.S. live with kidney failure. [8] Most on in-center hemodialysis go three times a week; home and peritoneal dialysis follow other schedules. [9] Many have a daily fluid limit, and thirst can be hard.

Early evidence: a few small studies (often just one study per idea, and some in heart-failure patients rather than dialysis) suggest ice chips (counted as fluid), mouth rinses and fluid timetables may ease thirst for some people. Study quality is low to moderate, and chewing gum did not clearly help. [10]

Ask your nephrologist or renal dietitian what your fluid limit is and which thirst tips fit your plan.

5. Using the RenalShield label tool

RenalShield helps you notice additive names on a label photo. It can miss things or misread text. Always check the actual package. Unknown amounts stay unknown. No login is needed, and your notes stay in your browser.

Ask your nephrologist or renal dietitian to review any foods you're unsure about.

Medical reviewer wanted

RenalShield is a free, non-commercial patient education project. We're looking for a volunteer nephrologist, renal dietitian or nephrology nurse to review this guide for accuracy. Reviewers will be credited (with permission). Corrections are welcome anytime. Contact: press@northstarprime.net