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Tofu, firm, prepared with calcium sulfate and magnesium chloride (nigari)

Per 100 g edible portion
Legumes & Nuts
Kidney-friendlyOn a stage 3-4 CKD basis, Tofu's Kidney-friendly rating is driven by Phosphorus (12%) - none of the three minerals exceeds 15%.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus121 mg12%
Low
Sodium12 mg<1%
Low
Potassium148 mg7%
Low

About this food

Tofu (Legumes & Nuts). Legumes and nuts are typically high in both phosphorus and potassium, so they need care. Plant phosphorus absorbs at a lower rate (30-50%), so the real load is smaller than the numbers suggest. This is the same lens used for similar items.

Nutrient insight

Tofu's phosphorus (12%) is worth noting - especially with Natural plant source (lower absorption) as the source, since absorption differs a lot.

Other nutrients

Protein9 gNot part of rating
Fiber0.9 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)0.6 gNatural sugar
Alcohol0 gAlcohol-free
Purine78.5 mgModerate purineNot rated · category estimate
OxalateNo dataNot rated · reference for those with kidney stones
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

Worth remembering: Cook legumes and discard the water to lower some minerals; keep nuts to a small handful.

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Related guides

Legumes & NutsKidney-friendly foodsHigh fiber foodsLow sodium foods

Frequently asked questions

Is Tofu safe for kidney disease?

From a daily-limit standpoint, Tofu is Kidney-friendly - Phosphorus (12%) is the highest of the three. Whether it suits you is best confirmed with your doctor.

Why is Tofu rated Kidney-friendly?

Rating basis: Tofu's Phosphorus is 121 mg, 12% of the daily limit, judged as Kidney-friendly per the <15% tier.

How much Phosphorus is in Tofu?

On a per-100 g basis, Tofu contains Phosphorus 121 mg, or 12% of the 1,000 mg daily limit.

Is Tofu safe on a low-potassium diet?

For a potassium-watching diet, Tofu falls below the 300 mg per 100 g marker (Potassium 148 mg). The safest step is checking this against your own lab-based limit.

How does Tofu compare to other legumes & nuts foods?

Measured against other Legumes & Nuts foods, Tofu is less in Phosphorus (121 mg per 100 g) than the category average - data-only, never a prescription.