Onions, raw
Per 100 g edible portion
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus29 mg3%Low
Sodium4 mg<1%Low
Potassium146 mg7%Low
About this food
For Vegetables, Onions is a typical example. 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
Onions's potassium is the top contributor (7% 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
Protein1.1 gNot part of rating
Fiber1.7 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)4.2 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
Practical tip: Slice, boil and discard the water to remove roughly 30-50% of the potassium - a practical method for high-potassium vegetables.