No Coffee, Chocolate (yeah, I know!), Chianti (Red wine but alcohol in general), Cows milk, Cheese, Chinese (MSG largely, home cooked probably non issue)
Also don’t eat Advocados or Bananas if you can.
I suspect it’s about reducing Potassium as all above are high in Potassium.
I don’t believe you should combine this diet with a diuretic as you tend to lose lots of Potassium by taking that kind of drug.