Onions, dehydrated flakes
Per 100 g edible portion
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus303 mg30%High
Sodium21 mg1%Low
Potassium1622 mg81%High
About this food
Onions sits in the Vegetables group. 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
Potassium is the highest of the three at 81%. With reduced kidney function, blood potassium can rise, so spread high-potassium foods across the day rather than in one large serving.
Other nutrients
Protein8.9 gNot part of rating
Fiber9.2 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)37.4 gNatural sugar
Alcohol0 gAlcohol-free
Purine2.2 mgLow purineNot rated · category estimate
Oxalate27 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.