Is salt restriction really necessary for hypertension? is there any side effect of salt substitute (potassium chloride) that i should be aware of?

See below.: Salt restriction, i.e. A low sodium diet is extremely important and effective in treating hypertension. Salt substitutes are loaded with potasium and one needs to be careful

Potassium and HBP: In the absence of chronic kidney disease, potassium ingestion has a beneficial effect on blood pressure. A review article showed that increased potassium intake is potentially beneficial to most people without impaired renal handling of potassium for the prevention and control of elevated blood pressure and stroke. Here is the link: http://www.Bmj.Com/content/346/bmj.F1378. Speak to your physician.

Absolutely needed: Salt restriction is absolutely important for controlling BP. Salt substitute- potassium chloride is not a problem if your kidney function is good and you do not have high potassium in the blood due to medications or other diseases