Uncovering the Truth Behind RO Water and Mineral Deficiency
Reverse Osmosis (RO) water purifiers have become household staples for clean drinking water. But as more people switch to RO systems, a critical question arises — does RO water cause mineral deficiency? This concern is valid because RO filtration removes contaminants along with essential minerals like calcium, magnesium, and potassium. While this improves water purity, it may leave the water nutritionally empty.
Does RO Water Cause Mineral Deficiency in the Long Run?
RO systems work by forcing water through a semi-permeable membrane, eliminating impurities as small as 0.0001 microns. However, in the process, they also remove up to 90% of beneficial minerals. Studies, including reports by the World Health Organization (WHO), suggest that consuming demineralized water regularly can lead to electrolyte imbalances and mineral deficiencies.
For example, calcium and magnesium are vital for bone strength, nerve function, and heart health. When these are missing from drinking water, your body may face minor to moderate health effects, especially if your diet lacks these nutrients.
Does RO Water Cause Mineral Deficiency in Children and Pregnant Women?
Yes, the risk is higher for children and pregnant women. These groups require higher mineral intake for growth and development. If RO water is their primary source of hydration, without a well-balanced diet or supplemental minerals, deficiencies can develop over time.
Fortunately, the solution is simple. Many RO systems now include remineralization filters that add essential minerals back into the water. Alternatively, using mineral-rich foods or multivitamin supplements can help maintain balance.
Healthcare Note:
If you or your family rely solely on RO water, consider testing the TDS (Total Dissolved Solids) level. Ideally, drinking water should have a TDS of 150–300 ppm. Below 100 ppm, you may need to remineralize it. Always consult a healthcare provider before making changes to your water source.
