Search Foods
Home › Food Database › Peanut butter

Peanut butter, smooth style, with salt (Includes foods for USDA's Food Distribution Program)

Per 100 g edible portion
Legumes & Nuts
Higher riskBased on CKD stage 3-4 daily limits, Peanut butter is rated Higher risk - Phosphorus exceeds 34% of its limit, past the 30% warning line.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus335 mg34%
High
Sodium426 mg21%
Moderate
Potassium558 mg28%
High

About this food

Peanut butter 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

Peanut butter's phosphorus is 34% of the limit, from Natural plant source (lower absorption). On a phosphorus-restricted diet, limit how often and how much you eat it.

Other nutrients

Protein22.2 gNot rated; needs attention at stage 4-5
Fiber5 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)10.5 gNatural sugar
Alcohol0 gAlcohol-free
Purine49.1 mgLow 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 handy approach - Cook legumes and discard the water to lower some minerals; keep nuts to a small handful.

Related foods

vermicelliKidney-friendlynoodlesKidney-friendlypectinKidney-friendlyoilKidney-friendly

Related guides

Legumes & NutsHigher risk foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Peanut butter safe for kidney disease?

Peanut butter scores Higher risk on the phosphorus/sodium/potassium assessment, led by Phosphorus (34% of limit). This site presents data, not medical judgment.

Why is Peanut butter rated Higher risk?

The reason: Phosphorus (335 mg, 34%) is the most prominent of Peanut butter's three minerals, at the >30% level, which maps to Higher risk.

How much Phosphorus is in Peanut butter?

Data: 100 g of Peanut butter has Phosphorus 335 mg (34% of the 1,000 mg limit).

Is Peanut butter safe on a low-potassium diet?

Low-potassium question: Peanut butter exceeds the 300 mg threshold (Potassium 558 mg per 100 g). Whether it fits depends on your daily potassium budget.

How does Peanut butter compare to other legumes & nuts foods?

Next to other Legumes & Nuts options, Peanut butter carries more Phosphorus at 335 mg per 100 g. Use your own daily limits, not category labels, as the guide.