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Watercress, raw

Per 100 g edible portion
Vegetables
ModerateWatercress's standout mineral is Potassium (16% of limit), giving it a Moderate rating - fine to eat with attention to portions.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus60 mg6%
Low
Sodium41 mg2%
Low
Potassium330 mg16%
Moderate

About this food

How to think about Vegetables: Watercress is worth a closer look - Vegetables are a key source of fiber and vitamins and are beneficial in CKD. Some are high in potassium, but slicing, boiling and discarding the water can remove about 30-50% of the potassium - a practical step.

Nutrient insight

Watercress's potassium is the top contributor (16% of its limit), so its potassium density deserves attention. In CKD stage 3-4 the kidneys clear potassium less well - control portions, and peeling, slicing or boiling can help.

Other nutrients

Protein2.3 gNot part of rating
Fiber0.5 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)0.2 gNatural sugar
Alcohol0 gAlcohol-free
PurineNo dataNot rated · reference for those with high uric acid
Oxalate8 mgLow oxalateNot rated · exact match
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

Practical tip: Slice, boil and discard the water to remove roughly 30-50% of the potassium - a practical method for high-potassium vegetables.

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Related guides

VegetablesModerate foodsLow potassium foodsLow sodium foods

Frequently asked questions

Is Watercress safe for kidney disease?

Watercress is rated Moderate: Potassium is 16% of the CKD stage 3-4 limit, the highest item. Individual needs should be discussed with your healthcare team.

Why is Watercress rated Moderate?

Watercress's Potassium content (330 mg) equals 16% of the limit, sitting in the 15-25% band - that is why it rates Moderate.

How much Potassium is in Watercress?

Per 100 g, Watercress contains Potassium 330 mg, which is 16% of the CKD stage 3-4 daily limit (2,000 mg).

Is Watercress safe on a low-potassium diet?

On a low-potassium diet, Watercress exceeds the 300 mg per 100 g reference point, providing 330 mg of Potassium. Treat this as a reference - your stage and labs decide the real target.

How does Watercress compare to other vegetables foods?

Compared with the typical Vegetables food, Watercress has less Potassium - 330 mg per 100 g on record. Ratings on this site always use the food's own measured values.