Tofu and CKD: Potassium, Phosphorus & Sodium Reference
Short answer: Tofu is rated Kidney-friendly for CKD stage 3-4. Measured against KDIGO/KDOQI daily limits, Tofu is Kidney-friendly: even its highest mineral, Phosphorus, reaches only 12% of the limit.
About Tofu
Tofu is a common member of 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 helps when choosing similar foods.
Nutrient insight
Phosphorus at 12% is the highest item. Additive phosphorus in processed foods absorbs best; naturally occurring phosphorus is more controllable.
Phosphorus / Sodium / Potassium per 100 g
Phosphorus121 mg12%Low
Sodium12 mg<1%Low
Potassium148 mg7%Low
Practical tips
If you are managing mineral intake: Cook legumes and discard the water to lower some minerals; keep nuts to a small handful.
See the full Tofu food page →Lower-risk alternatives
VermicelliK 3 / P 20 mg
NoodlesK 10 / P 32 mg
Tofu yogurtK 47 / P 38 mg