Final answer:
Potassium, phosphorus, sodium, and fluids are often heavily restricted in certain health conditions, especially those related to kidney, heart, or liver diseases. Overconsumption can lead to harmful buildup in the body.
Step-by-step explanation:
The substances you mentioned, potassium, phosphorus, sodium, and fluids, are often restricted in certain health conditions, particularly those that affect the kidneys, heart, or liver. For instance, patients with chronic kidney disease need to regulate their intake of these substances as their kidneys have a reduced ability to filter them out. Excessive levels can build up in the body and cause harm. Similarly, heart patients may be advised to limit sodium and fluid intake as it can exacerbate heart problems and blood pressure issues.
Learn more about Dietary Restrictions