Yes. Distilled water is sold as a drinking water product, it is safe, and there is nothing harmful about drinking it daily. The reservations that get raised are about what it lacks rather than what it contains, and they are modest, practical, and answered by one straightforward addition to the system.
Why it is safe
Distillation removes essentially everything that does not evaporate with the water: minerals and salts, heavy metals, nitrate, and also bacteria, viruses and most organic matter. That makes it one of the most thorough treatments available and the reason it is used where a source is genuinely doubtful. Once swallowed it behaves like any other water, becoming chemically indistinguishable from it within moments of meeting stomach contents, and it is absorbed identically.
What it is missing
Dissolved minerals, including the calcium and magnesium that drinking water normally contributes to the diet. Against a normal diet that difference is small, since food supplies the overwhelming majority of both. It matters more where diet is already poor, where intake is very high through heat or heavy work, or where distilled water is the household's sole supply over a long period. The USGS classes water as soft at 0 to 60 mg/L as calcium carbonate through to very hard above 180, so what is forgone depends on the supply it replaced.
What you will actually notice
The taste, immediately. Flavor in water comes almost entirely from what is dissolved in it, so distilled water reads as flat rather than unpleasant, and tea and coffee made with it are noticeably duller because extraction depends partly on mineral content. Some people find they simply drink less of it, which matters for anyone who struggles to drink enough in a day. Producing it at home is also slow and uses a good deal of electricity per liter.
The addition that answers both
A remineralizing stage adds calcium and magnesium back, restoring the taste and the mineral contribution in one step, and it is what commercial systems fit as standard for exactly this reason. It converts water that tastes of nothing into water most people prefer to their tap supply. If the reason for distilling is a doubtful source, this is the sensible completion of the system rather than an optional extra. Our softener guide covers the mineral question at property scale.
Questions people ask about can we drink distilled water
Is it safe to drink distilled water every day?
Yes. It is sold as a drinking water product and behaves like any other water once swallowed.
What is it missing?
Dissolved minerals, including the calcium and magnesium water normally contributes to the diet, which food supplies in far greater quantity.
Why does it taste flat?
Taste in water is almost entirely its dissolved minerals, and distillation removes all of them.
How do I fix the taste?
A remineralizing stage adds calcium and magnesium back, restoring taste and mineral content in a single step.