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Corn, sweet, white, frozen, kernels on cob, cooked, boiled, drained, with salt

Per 100 g edible portion
Vegetables
Kidney-friendlyUsing CKD stage 3-4 limits, Corn falls in the Kidney-friendly tier - Potassium (13%) is the most notable of the three, with low risk across the board.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus75 mg8%
Low
Sodium240 mg12%
Low
Potassium251 mg13%
Low

About this food

About Corn: Vegetables are a key source of fiber and vitamins and are beneficial in CKD. Some are high in potassium, but slicing, boiling and discarding the water can remove about 30-50% of the potassium - a practical step. As a Vegetables item, its role in a kidney diet depends mainly on mineral content.

Nutrient insight

Corn's potassium is the top contributor (13% of its limit), so its potassium density deserves attention. In CKD stage 3-4 the kidneys clear potassium less well - control portions, and peeling, slicing or boiling can help.

Other nutrients

Protein3.1 gNot part of rating
Fiber2.8 gBeneficial for CKD (core plant-based nutrient)
Alcohol0 gAlcohol-free
Purine6.4 mgLow purineNot rated · category estimate
Oxalate1 mgLow oxalateNot rated · category estimate
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

Practical tip: Slice, boil and discard the water to remove roughly 30-50% of the potassium - a practical method for high-potassium vegetables.

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Frequently asked questions

Is Corn safe for kidney disease?

Based on CKD stage 3-4 daily limits, Corn is rated Kidney-friendly - Potassium is the highest contributor at 13% of its limit. Ratings reflect public nutrition data only; individual cases should follow medical advice.

Why is Corn rated Kidney-friendly?

Among phosphorus, sodium and potassium, Corn's Potassium is highest (251 mg, 13% of daily limit), falling in the <15% band - hence the Kidney-friendly rating.

How much Potassium is in Corn?

Per 100 g, Corn contains Potassium 251 mg, which is 13% of the CKD stage 3-4 daily limit (2,000 mg).

Is Corn safe on a low-potassium diet?

On a low-potassium diet, Corn falls below the 300 mg per 100 g reference point, providing 251 mg of Potassium. Treat this as a reference - your stage and labs decide the real target.

How does Corn compare to other vegetables foods?

Compared with the typical Vegetables food, Corn has less Potassium - 251 mg per 100 g on record. Ratings on this site always use the food's own measured values.