Distilled water is not bad for you to drink. Boiling water into vapour and condensing it back leaves behind dissolved minerals, metals and most other non volatile material, and what you are left with is water with very little in it. The real objections to drinking it daily are taste, cost and effort rather than harm.
Why it tastes the way it does
Taste in drinking water comes largely from its dissolved minerals. The USGS defines hardness as dissolved calcium and magnesium measured as calcium carbonate, with soft water at 0 to 60 mg/L, moderately hard 61 to 120, hard 121 to 180 and very hard above 180 mg/L. Distillation removes essentially all of that, so what remains is flat and slightly insipid. People who dislike distilled water are almost always reacting to the absence of those minerals, not to anything in it.
The mineral loss in proportion
You will read that distilled water leaches minerals from the body. What is fair to say is narrower: drinking water is a minor contributor to calcium and magnesium intake compared with food, so removing it changes little for someone eating normally. If you drink distilled water exclusively and want the taste back, a pinch of mineral drops or a remineralizing filter restores mouthfeel. Treat that as a preference, not a correction of a deficiency.
Where distilled water is genuinely worth having
Distilled water earns its place in appliances rather than in glasses: steam irons, CPAP humidifiers, car cooling systems, batteries and any device whose manual calls for it, because leaving no scale is the whole point. Buying it by the jug for daily drinking is expensive and heavy, and a countertop distiller costs electricity for every gallon and needs the boiling chamber descaled by hand.
If you are drinking it to avoid something
That is the question worth asking. People often move to distilled water after a taste change, a contaminant scare or a failed well test, and distillation is a blunt way to solve a specific problem. Test the water and find out what is actually there first: a carbon filter, a softener or a reverse osmosis unit may fix the real complaint at the tap. Our water softener installation guide is the right starting point when the underlying issue turns out to be hardness.
Questions people ask about is distilled water bad to drink
Can you drink distilled water every day?
Yes. It is safe to drink regularly; the common complaints are its flat taste and the cost and inconvenience of supplying it.
Does distilled water remove minerals from your body?
Drinking water is a small contributor to mineral intake next to food, so for someone eating normally the effect of drinking distilled water is minor.
Is distilled water better than filtered water?
Not better, different. Distillation removes almost everything non volatile, while a filter targets specific contaminants and keeps the water tasting normal.