The practical swap
Most renal potassium excesses come from the same few foods: potatoes, tomatoes, bananas, dried fruit and milk. Because potatoes appear at almost every meal in a British diet, swapping half of them for swede is one of the highest-impact single changes a renal dietitian can suggest — with no change to how the plate looks.
Cooking ideas
- Swede mash with black pepper, nutmeg and a little olive oil (no added salt).
- Half swede, half potato mash — boiled and drained.
- Swede chips: batons tossed in oil and paprika, roasted after par-boiling.
- Diced swede in a low-salt stew instead of extra potato.
- Neeps with a Sunday roast — a traditional and renal-friendly side.
A note on salt
The pitfall with root vegetables in the UK is not the vegetable but what goes on it: stock cubes, gravy granules and butter with salt. Use herbs, pepper, mustard powder and lemon instead, and choose reduced-salt gravy — but check it does not use potassium chloride.
