Final answer:
Patients on ACE inhibitors should avoid salt substitutes and foods high in potassium to prevent hyperkalemia. Sodium intake is generally discouraged for hypertension but not specifically related to ACE inhibitor therapy.
Step-by-step explanation:
While taking Antiotensin-converting enzyme (ACE) inhibitors, patients need to avoid salt substitutes and foods high in potassium. This is because ACE inhibitors can increase potassium levels in the blood, and consuming additional potassium can lead to dangerous levels of this electrolyte, resulting in hyperkalemia. Consuming too much sodium is generally discouraged for those with hypertension, but it is not specifically related to the interference with ACE inhibitors.