The one's you use for kitchen/home use are meant to remove certain things (for taste mostly). If you check the fine print one each one it will list the types of things that it removes. Primarily chlorine, floride, heavy metals and some now claiming nitrate due to the whole blue-baby syndrome. Compare that to your whats in your water (via your municipality water report) and you'll see what's left.
water isn't meant for drinking. It has none of the minerals and other things that nourish the body. Even RO
water used for freshwater tanks need to have minerals and electrolytes added back into the water before it can be used for a FW