Search Foods
Home Food Database Tofu

Tofu, extra firm, prepared with nigari

Per 100 g edible portion
Legumes & Nuts
Kidney-friendlyBased on CKD stage 3-4 daily limits, Tofu is rated Kidney-friendly - Phosphorus is the highest at 11% of its limit, still well below 15%.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus111 mg11%
Low
Sodium4 mg<1%
Low
Potassium130 mg6%
Low

About this food

Tofu belongs to the Legumes & Nuts category. 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.

Nutrient insight

On the phosphorus angle (11%), Tofu belongs in the watch category. Pairing it with low-phosphorus sides like white rice or egg whites balances the meal.

Other nutrients

Protein10 gNot rated; needs attention at stage 4-5
Fiber1 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)0.7 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

A common practice is: Cook legumes and discard the water to lower some minerals; keep nuts to a small handful.

Related foods

Related guides

Frequently asked questions

Is Tofu safe for kidney disease?

From a daily-limit standpoint, Tofu is Kidney-friendly - Phosphorus (11%) 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 111 mg, 11% of the daily limit, judged as Kidney-friendly per the <15% tier.

How much Phosphorus is in Tofu?

Per 100 g, Tofu provides Phosphorus 111 mg, compared with the CKD stage 3-4 limit of 1,000 mg (11%).

Is Tofu safe on a low-potassium diet?

On a low-potassium plan, Tofu falls below the 300 mg reference, showing 130 mg of Potassium per 100 g. Individual targets vary by CKD stage and lab results.

How does Tofu compare to other legumes & nuts foods?

Within Legumes & Nuts, Tofu ranks less on Phosphorus (111 mg per 100 g) than the group average. Individual needs still decide what fits your plan.