If you take ACE inhibitors for blood pressure, Dyazide or Maxzide diuretic, spironolactone, you cannot safely use Salt substitutes.

Certain forms of kidney disease also raise potassium.
As long as you keep your NuSalt to a minimum, and have normal kidney functions, and do not use those drugs daily... your body may handle the extra potassium okay. The danger is that supplements are concentrated and enter the blood quickly and it takes time for the body to lower it if it is too high.

The body excretes potassium into the colon from the bloodstream when the levels are too high and it is then reabsorbed slowly as needed or lost in the stool. Potassium from FOOD is slowly absorbed by contrast into the blood, and less likely to cause damage. The fastest damage is to the heart...and a flood of potassium may affect your heart beat. Potassium injections are used to kill people (potassium chloride)...in prisons, and during euthansia. So you need to be careful with that NuSalt... a very light dusting can be more than what the label says easily.

I learned to eat lower salt over 30 yrs ago... when I was pregnant. I still do not salt any of my food, and I avoid salted snacks.