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Fiddlehead ferns, raw

Per 100 g edible portion
Vegetables
ModerateOn a stage 3-4 CKD basis, Fiddlehead ferns's Moderate rating is led by Potassium (18%), placing it in the 15-25% band.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus101 mg10%
Low
Sodium1 mg<1%
Low
Potassium370 mg18%
Moderate

About this food

Fiddlehead ferns (Vegetables). 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. This is the same lens used for similar items.

Nutrient insight

Potassium is the highest of the three at 18%. With reduced kidney function, blood potassium can rise, so spread high-potassium foods across the day rather than in one large serving.

Other nutrients

Protein4.5 gNot part of rating
Alcohol0 gAlcohol-free
PurineNo dataNot rated · reference for those with high uric acid
Oxalate30 mgLow oxalateNot rated · category estimate
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

How to eat it more safely: 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 Fiddlehead ferns safe for kidney disease?

On a CKD stage 3-4 basis, Fiddlehead ferns is Moderate, with risk mainly coming from Potassium (18%). Data is for reference and is not medical advice.

Why is Fiddlehead ferns rated Moderate?

Simply put: among Fiddlehead ferns's three minerals, Potassium is highest (370 mg, 18%), and by the tier rule (15-25%) the result is Moderate.

How much Potassium is in Fiddlehead ferns?

In every 100 g of Fiddlehead ferns, Potassium is about 370 mg - roughly 18% of the daily limit (2,000 mg).

Is Fiddlehead ferns safe on a low-potassium diet?

For people watching potassium, Fiddlehead ferns exceeds 300 mg per 100 g, with Potassium at 370 mg. Confirm your personal limit with your nephrologist or renal dietitian.

How does Fiddlehead ferns compare to other vegetables foods?

Against the Vegetables average, Fiddlehead ferns shows more Potassium (370 mg per 100 g). The tier shown here comes from its own numbers, not the category.