Watermelon brings on hyperkalaemia in patients: case series

The fruit is often 'overlooked' as a high-potassium food, US doctors say.

Patients with impaired kidney function would be wise to go easy on their watermelon consumption, with US doctors warning it has the potential to induce severe hyperkalaemia.

Watermelon is often “overlooked” as a high-potassium food despite two wedges (or an eighth of a melon) containing approximately 640mg of the mineral, said the team from Saint Vincent Hospital in Worcester, Massachusetts.