Mild Alkaline vs. RO Water: Which is Better for Your Health?

Choosing the right drinking water for your home is essential for maintaining good health. Two of the most popular water purification methods in Malaysia are Mild Alkaline Water (offered by Cuckoo) and Reverse Osmosis (RO) Water (offered by Coway).

But which one is better? Should you drink mild alkaline water or RO water daily? In this guide, we’ll compare their benefits, drawbacks, and which one suits your needs best.

1. Understanding Mild Alkaline & RO Water

What is Mild Alkaline Water?

Mild alkaline water has a pH level between 7.5 and 8.5, which helps neutralize acidity in the body. Cuckoo water purifiers use a Nano Positive Filtration System to remove contaminants while retaining essential minerals like calcium, magnesium, and potassium.

What is RO (Reverse Osmosis) Water?

RO water is purified through a reverse osmosis membrane, which removes up to 99.9% of impurities, including bacteria, viruses, heavy metals, and minerals. As a result, RO water is completely purified but lacks minerals, making it “empty” water.

2. Mild Alkaline vs. RO Water: Key Differences

FeatureMild Alkaline Water (Cuckoo)RO Water (Coway)
pH Level7.5 – 8.5 (Mild Alkaline)~7.0 (Neutral)
Mineral RetentionYes (Retains Essential Minerals)No (Removes All Minerals)
Filtration ProcessNano Positive FiltrationReverse Osmosis (RO)
TasteNatural, refreshing tasteFlat, slightly acidic taste
Health BenefitsSupports digestion, hydration & immunityRemoves contaminants, suitable for medical needs
Common UsersFamilies, health-conscious individualsPeople who need ultra-pure water

Verdict: If you want balanced hydration with essential minerals, mild alkaline water is healthier for daily drinking. However, RO water is good for people who need ultra-pure water, such as those with kidney issues.

3. Health Benefits of Mild Alkaline Water

  • Neutralizes Acidity: Helps balance the body’s pH, reducing acid reflux and improving digestion.
  • Retains Essential Minerals: Provides calcium, magnesium, and potassium for stronger bones and better hydration.
  • Better Hydration: Smaller water molecules make it easier for cells to absorb water.
  • Boosts Immunity: Rich in minerals that support the body’s defense system.
  • Tastes Better: Many users prefer the natural, refreshing taste of mild alkaline water over RO water.

4. Health Concerns of RO Water

  • Removes Essential Minerals – While RO removes contaminants, it also eliminates beneficial minerals.
  • Can Be Acidic – RO water has a lower pH (~7.0), which may increase acidity in the body over time.
  • Flat Taste – Many users find RO water tasteless compared to mineral or alkaline water.

5. Which Water Should You Choose?

If you’re looking for daily drinking water that supports health, mild alkaline water is the better choice. It provides essential minerals, tastes better, and helps with hydration and digestion.

However, if you need completely purified water for medical reasons (e.g., kidney disease), then RO water may be a better option.

6. Best Water Purifier for Mild Alkaline & RO Water

Water PurifierWater TypeFiltration SystemTank MaterialRental Price
Cuckoo Kingtop 2Mild Alkaline4-Stage Filtration (Nano Positive)Stainless SteelRM58/month
Coway NeonRO Water2-Stage Filtration (RO)BPA-Free PlasticRM59/month

Recommendation: Cuckoo Kingtop 2 provides better health benefits with mild alkaline water, stainless steel tank, and lower maintenance.

Conclusion: Mild Alkaline Water is the Better Choice

  • For overall health & better hydration – Choose Mild Alkaline Water (Cuckoo)
  • For completely purified water (medical needs) – Choose RO Water (Coway)

Need a Cuckoo water purifier? Contact a Cuckoo sales representative today!