Is Distilled Water Safe to Drink Daily?

slug: is-distilled-water-safe-to-drink-daily

title: "Is Distilled Water Safe to Drink Daily?"

teaser: "It’s the purest water you can find, but drinking it exclusively can strip your body of essential minerals over time."

category: water-filtration

subcategory: understanding-your-water

verdict: caution

status: published

is_new: true

updated: 2026-03-03

tldr: >

Distilled water is safe to drink in moderation, but we do not recommend it as your primary daily water source without remineralization. While it is exceptionally pure, its lack of minerals can lead to electrolyte imbalances and make the water "aggressive," potentially leaching minerals from your body over time. For daily drinking, remineralized reverse osmosis or filtered tap water are healthier choices.

key_findings:

• Distilled water absorbs CO2 from the air, dropping its pH to around 5.8 (acidic) within hours.
• Exclusive long-term consumption can lead to a 20-30% reduction in intake of essential minerals like magnesium and calcium.
• The World Health Organization (WHO) warns that demineralized water has a "definite adverse influence" on the animal and human organism.
• "Aggressive" water can leach chemicals from plastic containers more readily than mineral-rich water.

sources:

• title: "Health risks from drinking demineralized water"

url: "https://apps.who.int/iris/bitstream/handle/10665/43403/9241593989_eng.pdf"

type: study

• title: "Erosive potential of beverages on dental enamel"

url: "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4963973/"

type: study

• title: "Nanoscale Effects of Beverages on Enamel Surface"

url: "https://www.sciencedirect.com/science/article/abs/pii/S175161612030467X"

type: study

recommendations:

• name: "Trace Minerals ConcenTrace Drops"

brand: "Trace Minerals Research"

verdict: recommended

note: "Instantly adds magnesium, chloride, and sodium back into distilled water."

• name: "Home Water Distiller"

brand: "Megahome"

verdict: acceptable

note: "Excellent for removing contaminants, but requires remineralization for drinking."

related:

• should-you-remineralize-your-filtered-water
• is-reverse-osmosis-water-missing-important-minerals
• what-minerals-should-be-in-drinking-water
• is-plastic-water-bottle-leaching-a-real-concern

suggested_articles:

• title: "How to Remineralize Distilled Water at Home"

reason: "A practical guide for readers who already own a distiller and want to make their water safe."

• title: "Distilled vs. Reverse Osmosis: Which Is purer?"

reason: "Clarifies the difference between these two high-purity methods for confused consumers."

The Short Answer

Yes, but proceed with caution. Drinking distilled water daily is generally safe for short periods (like a detox), but we advise against it for long-term exclusive use unless you remineralize it.

While distilled water is free from virtually all contaminants, it is also "dead water"—stripped of all beneficial minerals. This makes it "aggressive," meaning it actively seeks to bond with minerals it touches, which can pull electrolytes from your body and increase urine output. For daily hydration, a balanced mineral profile is crucial for heart and bone health.

Why This Matters

**It’s not just about what’s in your water, but what isn’t.**

Nature rarely produces pure H2O. Natural water sources are rich in dissolved solids like calcium and magnesium. When you strip these away, you disrupt the way your body hydrates. The World Health Organization (WHO) has specifically warned against the continuous consumption of demineralized water, citing risks of electrolyte imbalance and reduced intake of essential micronutrients. What Minerals Should Be In Drinking Water

Your water becomes acidic when exposed to air.

Freshly distilled water has a neutral pH of 7.0. However, because it has no minerals to act as a buffer, it aggressively absorbs carbon dioxide from the air. Within hours, this forms carbonic acid, dropping the pH to a slightly acidic 5.8. While this won't cause "metabolic acidosis" (your body buffers your blood pH tightly), it can be harder on tooth enamel over decades than neutral water. Is City Tap Water Actually Safe To Drink

It can taste "flat" or "empty."

Minerals give water its refreshing taste. Without them, distilled water often tastes bland to the tongue. This subtle flavor difference often leads people to drink less water overall, inadvertently causing dehydration despite having "pure" water on hand.

What Distilled Water Does to Your Body

When you drink demineralized water, it interacts with your physiology differently than mineral-rich water.

• Leaches Minerals: Because it is "hungry" for ions, distilled water can pull small amounts of minerals from your tissues to reach equilibrium.
• Diuretic Effect: Studies suggest demineralized water can increase urine output by 20%, causing you to lose electrolytes like sodium and chloride faster than normal.
• Reduces Nutrient Intake: We get a surprising amount of our daily magnesium and calcium from water. Switching to distilled removes this "free" nutritional source. Is Reverse Osmosis Water Missing Important Minerals

What to Look For

If you choose to drink distilled water, you need to manage the risks.

Green Flags (Safe Practices):

• Remineralization: Always add minerals back before drinking. This stabilizes the pH and restores the electrolyte balance. Should You Remineralize Your Filtered Water
• Glass Storage: Store distilled water in glass. Its "aggressive" nature means it can pull plasticizers and chemicals from cheap plastic bottles faster than tap water.
• Short-Term Use: perfectly fine for a 1-2 week detox or while traveling in areas with unsafe tap water.

Red Flags (Dangers):

• Exclusive Use for Infants: Never use straight distilled water for baby formula without consulting a pediatrician. Infants have fragile electrolyte balances that can be dangerously disrupted.
• Code 1, 3, 6, or 7 Plastics: Avoid storing distilled water in these plastics. Look for HDPE (Code 2) or glass to minimize chemical leaching. Is Plastic Water Bottle Leaching A Real Concern

The Best Options

If you want the purity of distillation without the health risks, you have a few paths.

The Bottom Line

1. Don't drink it plain forever. If you love the taste of distilled water, add trace mineral drops or a pinch of pink Himalayan salt to every gallon.

2. Use it for appliances. Distilled water is the gold standard for CPAP machines, humidifiers, and steam irons because it prevents mineral scale buildup.

3. Switch to RO for drinking. A Reverse Osmosis (RO) system with a remineralization stage is a more practical long-term solution for pure drinking water. Is Reverse Osmosis The Best Water Filter

FAQ

Does distilled water leach minerals from your teeth?

Technically yes, but slowly. While it is not as erosive as sugary sodas (which have a pH of ~2.5), distilled water's lack of calcium and phosphate means it cannot help repair your enamel like mineral-rich saliva or tap water can. Over a lifetime, this lack of protection can be a negative factor for dental health.

Is distilled water better than reverse osmosis?

For purity, yes; for drinking, no. Distillation removes slightly more bacteria and viruses than RO, but RO is generally preferred for drinking because it is faster, uses less energy, and modern systems often include a remineralization step automatically. Is Reverse Osmosis The Best Water Filter

Can I give distilled water to my pets?

Avoid it. Just like humans, pets need minerals for their heart and nerve function. Long-term use of distilled water can lead to electrolyte imbalances in cats and dogs, who are often smaller and more sensitive to these shifts.