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Rye flour, medium

Per 100 g edible portion
Grains & Starches
ModerateBased on CKD stage 3-4 daily limits, Rye flour is rated Moderate - Phosphorus is the top contributor at 22% of its limit, within the 15-25% band.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus225 mg22%
Moderate
Sodium2 mg<1%
Low
Potassium374 mg19%
Moderate

About this food

Rye flour belongs to the Grains & Starches category. Grains and starches are usually relatively low in potassium and phosphorus, making them a sensible base for a CKD diet. Watch whole-grain and some processed grain products, which can carry more phosphorus.

Nutrient insight

Rye flour's phosphorus is 22% 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

Protein10.9 gNot rated; needs attention at stage 4-5
Fiber11.8 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)1.1 gNatural sugar
Alcohol0 gAlcohol-free
Purine5 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 - Use refined grains as the base and treat whole grains by portion, since they carry more phosphorus.

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Related guides

Grains & StarchesModerate foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Rye flour safe for kidney disease?

From a daily-limit standpoint, Rye flour is Moderate - Phosphorus (22%) is the highest of the three. Whether it suits you is best confirmed with your doctor.

Why is Rye flour rated Moderate?

Rating basis: Rye flour's Phosphorus is 225 mg, 22% of the daily limit, judged as Moderate per the 15-25% tier.

How much Phosphorus is in Rye flour?

Data: 100 g of Rye flour has Phosphorus 225 mg (22% of the 1,000 mg limit).

Is Rye flour safe on a low-potassium diet?

Low-potassium question: Rye flour exceeds the 300 mg threshold (Potassium 374 mg per 100 g). Whether it fits depends on your daily potassium budget.

How does Rye flour compare to other grains & starches foods?

Next to other Grains & Starches options, Rye flour carries more Phosphorus at 225 mg per 100 g. Use your own daily limits, not category labels, as the guide.