How do you spot phosphorus on labels?

Look for ingredients containing "phos-": phosphate, phosphoric acid, polyphosphates. This added phosphorus is absorbed almost entirely and is the most harmful kind.

How much sodium should a product have for a kidney patient?

Prefer products with less than 140 mg of sodium per serving. Avoid those above 400 mg. Always check the stated serving size.

How to read nutrition labels if you have kidney disease

The supermarket is full of traps for your kidneys, hidden in the labels. Learning to read them in 30 seconds protects you from sodium, potassium and hidden phosphorus.

1. Check the sodium

Look for less than 140 mg per serving. Careful: the "serving" is usually smaller than what you actually eat.

2. Hunt down the hidden phosphorus

In the ingredient list, avoid anything starting with "phos-": phosphate, phosphoric acid, polyphosphates. It is absorbed at almost 100%.

3. Watch for potassium

It does not always appear on the label, but be wary of salt substitutes ("potassium chloride") and potassium additives.

4. Fewer ingredients = better

The shorter and more natural the ingredient list, the safer it usually is. Ultra-processed foods concentrate additives.

Your exact limits depend on your stage and your nephrologist. This guide is a starting point, not a replacement for medical advice.

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