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Cornstarch

Per 100 g edible portion
Grains & Starches
Kidney-friendlyOn a stage 3-4 CKD basis, Cornstarch's Kidney-friendly rating is driven by Phosphorus (1%) - none of the three minerals exceeds 15%.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus13 mg1%
Low
Sodium9 mg<1%
Low
Potassium3 mg<1%
Low

About this food

Cornstarch (Grains & Starches). Grains and starches are usually relatively low in potassium and phosphorus, making them a sensible base for a CKD diet. Watch whole-grain and some processed grain products, which can carry more phosphorus. This is the same lens used for similar items.

Nutrient insight

Phosphorus leads at 1%. In CKD, track phosphorus intake and factor in the source (Natural plant source (lower absorption)) to judge the true burden.

Other nutrients

Protein0.3 gNot part of rating
Fiber0.9 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)0 gNaturally free of sugar
Alcohol0 gAlcohol-free
PurineNo dataNot rated · reference for those with high uric acid
Oxalate0 mgLow oxalateNot rated · exact match
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

How to eat it more safely: Use refined grains as the base and treat whole grains by portion, since they carry more phosphorus.

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Related guides

Grains & StarchesKidney-friendly foodsHigh fiber foodsLow sodium foods

Frequently asked questions

Is Cornstarch safe for kidney disease?

Cornstarch scores Kidney-friendly on the phosphorus/sodium/potassium assessment, led by Phosphorus (1% of limit). This site presents data, not medical judgment.

Why is Cornstarch rated Kidney-friendly?

The reason: Phosphorus (13 mg, 1%) is the most prominent of Cornstarch's three minerals, at the <15% level, which maps to Kidney-friendly.

How much Phosphorus is in Cornstarch?

In every 100 g of Cornstarch, Phosphorus is about 13 mg - roughly 1% of the daily limit (1,000 mg).

Is Cornstarch safe on a low-potassium diet?

For people watching potassium, Cornstarch falls below 300 mg per 100 g, with Potassium at 3 mg. Confirm your personal limit with your nephrologist or renal dietitian.

How does Cornstarch compare to other grains & starches foods?

Against the Grains & Starches average, Cornstarch shows less Phosphorus (13 mg per 100 g). The tier shown here comes from its own numbers, not the category.