Search Foods
Home Food Comparisons Potato vs Sweet Potato: Which Is Better for Kidneys?

Potato vs Sweet Potato: Which Is Better for Kidneys?

Looking at the three rated minerals, Potato lands in the Moderate tier and Sweet Potato in the Kidney-friendly tier. On the three rated minerals, the widest separation is Potassium: 12% of the limit for Sweet Potato against 16% for Potato.

Potato
Moderate
Sweet Potato
Kidney-friendly
Phosphorus
40 mg
4%
32 mg
3%
Sodium
5 mg
<1%
27 mg
1%
Potassium
328 mg
16%
230 mg
12%

About Potato

About Potato: 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.

About Sweet Potato

For Vegetables, Sweet Potato is a typical example. 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.

Practical tips

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

See Potato details See Sweet Potato details

Frequently asked questions

Which has more potassium, potato or sweet potato?

By weight, Potato provides 328 mg of Potassium per 100 g; Sweet Potato provides 230 mg. That is the main mineral gap between them.

Is potato or sweet potato better for kidney disease?

Based on CKD stage 3-4 daily limits, Potato is rated Moderate and Sweet Potato is rated Kidney-friendly. Ratings reflect mineral load per 100 g only; individual advice should come from your healthcare team.

What is the difference between potato and sweet potato for a CKD diet?

The largest difference is Potassium: Sweet Potato sits at 12% of the daily limit versus 16% for Potato. Portion size changes both numbers, so compare per 100 g values on the food pages.