How to Read Food Labels on a Kidney Diet

Walking through the grocery store can feel overwhelming when you’re on a kidney diet. Every package has a nutrition label, but which numbers matter most? Learning to read labels carefully helps you make smarter choices that support your kidney health.

Key Parts of the Nutrition Label

1. Serving Size: Always start here. All nutrient numbers are based on this serving. If you eat double the serving size, you’re also doubling the sodium, potassium, and phosphorus.

2. Calories: Important for overall energy, but kidney diets usually focus more on specific nutrients.

3. Sodium: Look for foods with 140 mg or less per serving (this counts as low sodium). Aim to stay within your daily sodium limit, often around 2,000 mg or less.

4. Protein: Amounts vary by individual needs. Some with CKD may need to limit protein, while dialysis patients often need more.

5. Potassium: Not always listed. If it is, aim for 200 mg or less per serving for a low-potassium choice.

6. Phosphorus: Rarely listed, but check the ingredient list for anything containing “phos-.”

7. Added sugars and fats: Important for general health but not always kidney-specific.

The Ingredient List

The shorter the list, the better. Watch for:

• Phosphate additives: Words like “sodium phosphate” or “calcium phosphate.”

• Hidden salt: Terms like “brined,” “pickled,” or “smoked” usually mean high sodium.

• Healthy swaps: Look for fresh, unprocessed ingredients whenever possible.

Shopping Tips

• Choose “low-sodium” or “no salt added” versions: Especially for canned vegetables, soups, and sauces.

• Compare brands: Two similar products may have very different sodium or phosphorus levels.

• Ask your dietitian: If you’re unsure how a food fits your plan, write it down and check at your next appointment.

Bottom line: Food labels are your best tool for kidney health in the grocery store. Once you get comfortable reading them, you’ll feel more confident about every purchase.

Disclaimer: This content is for informational purposes only. We are not medical professionals. Please consult your doctor or registered dietitian before making any changes to your diet or treatment plan.