What is healthier purified or spring water?

Answer 1

Spring water usually comes form a protected and natural underground spring, and naturally contains minerals.

Purified water usually comes form a reservoir, lake, or urban water source, and is filtered to remove impurities and bacteria, which also removes any natural minerals. Many producers of purified water ad minerals back into the water, to improve taste.

From a health standpoint, both purified water and spring water provide the the same essential functions, and any health benefit from the natural or added minerals would be minimal.