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Buckwheat

Per 100 g edible portion
Grains & Starches
Higher riskBuckwheat is rated Higher risk. Phosphorus is 35% of its limit, beyond the safe line - individual cases need medical advice.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus347 mg35%
High
Sodium1 mg<1%
Low
Potassium460 mg23%
Moderate

About this food

Buckwheat sits in the Grains & Starches group. 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

Phosphorus at 35% is the highest item. Additive phosphorus in processed foods absorbs best; naturally occurring phosphorus is more controllable.

Other nutrients

Protein13.2 gNot rated; needs attention at stage 4-5
Fiber10 gBeneficial for CKD (core plant-based nutrient)
Alcohol0 gAlcohol-free
Purine75.9 mgModerate purineNot rated · exact match
OxalateNo dataNot rated · reference for those with kidney stones
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

If you are managing mineral intake: Use refined grains as the base and treat whole grains by portion, since they carry more phosphorus.

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Related guides

Grains & StarchesHigher risk foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Buckwheat safe for kidney disease?

By our rating standard (CKD stage 3-4), Buckwheat is Higher risk. Main consideration: Phosphorus at 35% of the daily limit. Data is for reference; consult your care team.

Why is Buckwheat rated Higher risk?

Buckwheat is rated Higher risk because Phosphorus is 35% of its limit (347 mg) - the only mineral reaching the >30% range.

How much Phosphorus is in Buckwheat?

Buckwheat's Phosphorus content is 347 mg per 100 g - 35% of the daily limit of 1,000 mg.

Is Buckwheat safe on a low-potassium diet?

If you are on a potassium-restricted diet, Buckwheat exceeds 300 mg per 100 g - Potassium comes in at 460 mg. Always verify against your own daily limit.

How does Buckwheat compare to other grains & starches foods?

How does Buckwheat compare within Grains & Starches? Its Phosphorus (347 mg per 100 g) is more than the category average. The rating below is calculated from this food's own data.