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Potato vs Tomato: Which Is Better for Kidneys?

For a kidney-friendly diet the question is mineral load: Potato is Moderate, Tomato is Kidney-friendly. The practical difference comes down to Potassium — Tomato uses 12% of the daily allowance, while Potato takes 16%.

Potato
Moderate
Tomato
Kidney-friendly
Phosphorus
40 mg
4%
24 mg
2%
Sodium
5 mg
<1%
5 mg
<1%
Potassium
328 mg
16%
237 mg
12%

About Potato

Potato (Vegetables). 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. This is the same lens used for similar items.

About Tomato

In a CKD diet, Vegetables deserve attention: Tomato - 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. A handy approach - 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 Tomato details

Frequently asked questions

Which has more potassium, potato or tomato?

For Potassium, the per-100 g values are 328 mg in Potato and 237 mg in Tomato — the rest of the mineral profile is on each food page.

Is potato or tomato better for kidney disease?

Under the daily limits used on this site, Potato falls in the Moderate tier and Tomato in the Kidney-friendly tier. Lower tiers mean a smaller share of the daily allowance per 100 g.

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

For a CKD diet, the key gap is Potassium — 12% of the limit for Tomato and 16% for Potato. Check each food page for phosphorus, sodium and potassium together.