Soybeans and soy products
Soybeans are rich in plant protein, good for the heart and reduce cholesterol. However, for people with chronic kidney disease, too much protein from soybeans can increase the burden of kidney filtering, leading to increased urea and creatinine in the blood. In addition, soybeans contain oxalates that can crystallize into kidney stones if accumulated.
Bananas
Bananas are a natural source of potassium, which supports heart and muscle function. However, in people with kidney disease, the kidneys cannot excrete all the potassium, leading to increased blood potassium, easily causing arrhythmia, and possibly even sudden death. Bananas are a fruit rich in potassium, so eating too much will be very dangerous for people with kidney failure.
Coconut water
This is a natural drink that helps relieve thirst, replenish electrolytes, and is good for the heart. However, coconut water is rich in potassium, similar to bananas, which can cause blood potassium levels to increase abnormally in people with kidney failure. In addition, if you drink too much, coconut water can cause electrolyte disorders, edema or high blood pressure.
Dark green vegetables such as spinach, kale
The above dark green vegetables are rich in vitamins, minerals and antioxidants. However, note that spinach and kale are rich in oxalates, which are one of the main components of calcium oxalate, the most common kidney stone. Eating too much can increase the risk of kidney stones, especially if you do not drink enough water.
Not all healthy foods are suitable for people with kidney disease. The important thing is to balance the portion, consult a doctor or nutritionist, especially when there is an underlying disease" - according to Prof. Dr. William E. Mitch, Nephrologist, Baylor College of Medicine (USA).