Does RO Water Remove Minerals? Why Your Diet Matters

1. What Is RO Water Filtration?


Reverse osmosis (RO) pushes water through a fine membrane under pressure. This process removes:
  • Dirt and sediment
  • Chemicals like chlorine and pesticides
  • Heavy metals (lead, arsenic)
  • Most dissolved minerals (calcium, magnesium)
You get almost pure, safe drinking water.

2. Does RO Water Really Lose Minerals?


Yes. RO removes up to 99% of minerals. But:
  • Tap water has low minerals. Typical tap water has about 50–200 mg/L of total dissolved solids (TDS).
  • Minerals from water are small. Even if you drank 2 L of tap water, you’d get only 100 – 400 mg of minerals.

3. Why Your Diet Is Your Main Mineral Source


Your meals give you far more minerals than water:
Food TypeKey MineralsAmount per Serving
Milk (250 mL)Calcium (300 mg)300 mg
Spinach (1 cup)Iron (6 mg)6 mg
Almonds (30 g)Magnesium (80 mg)80 mg
Banana (1 medium)Potassium (422 mg)422 mg
Tap water (250 mL) only gives 20–50 mg calcium.

4. Will “Demineralized” Water Harm You?


No—if you eat well:
  • Health groups don’t require minerals in water. Clean water safety is the top goal.
  • Balanced meals give enough minerals. Fruits, veggies, grains, dairy, nuts, and lean meat cover your needs.
  • Optional boost: Add a mineral cartridge after RO, or drink mineral water now and then.

5. Why Choose the ITEHIL Self-Pumping Outdoor Water Filter?


For camping, hiking, or travel, it offers:
  • Self-pumping: No tap pressure needed—pump by hand.
  • 5-stage filter: Pre-filter → activated carbon → RO membrane → post-carbon → (optional) mineral stage.
  • Lightweight: Only 1.2 kg, with a carry pouch.
  • Easy maintenance: Twist-and-lock filters—no tools.
  • Great taste: Removes 99.9% of impurities, and you can add back healthy minerals.

6. How to Get Enough Minerals


Eat a balanced diet

  • Whole grains, colorful veggies, lean proteins, nuts/seeds, dairy.

Drink clean water

  • RO water is safe—don’t worry about losing minerals here.

Add minerals if you like

  • Use a post-filter mineral cartridge or drink mineral water sometimes.

Quick Takeaways

  • RO removes minerals, but tap water’s minerals are minor.
  • Food provides your main minerals—focus on healthy meals.
  • ITEHIL’s outdoor filter gives pure water with an option to remineralize, perfect for any trip.
Portable Outdoor Reverse Osmosis Water Filtration System

Portable RO Water Filtration System

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Remineralization Filter
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