The following are two kinds of foods:

Low-phosphorus foods: soybean oil, bean jelly, wax gourd, wheat starch, pork ribs, egg white, apples, tomatoes, apples, white sugar, black sesame seeds and fungus

Low-potassium foods: lotus root starch, gluten, pig blood, eggs, pumpkins, apples, rice, and fungus.

1. Potassium can regulate the appropriate osmotic pressure in cells and the acid-base balance of body fluids, participate in the metabolism of intracellular sugar and protein, help to maintain nerve health and normal heartbeat, prevent stroke and help muscles to contract normally. Potassium has the effect of lowering blood pressure when high sodium intake leads to hypertension.

2. Participate in sugar, protein and energy metabolism: when glycogen is synthesized, potassium needs to enter the cell together with it, and when glycogen is decomposed, potassium is released from the cell. When protein is synthesized, it needs about 3mmol of potassium per gram of nitrogen, and when it is decomposed, it releases potassium. Potassium is also needed for ATP formation.

3. Participate in maintaining the osmotic pressure and acid-base balance of intracellular and extracellular fluids: Potassium is the main cation in cells, so it can maintain the osmotic pressure of intracellular fluid. In acidosis, blood potassium tends to increase at the same time due to the decrease of potassium excretion from the kidney and the migration of potassium from the inside to the outside of the cell, while in alkalosis, the opposite is true.

Extended link: Baidu Encyclopedia: Fruit (plant fruit with more water and sugar)