Is 70 TDS water good for health?

July 9, 2025 BLOGS

When it comes to drinking water, TDS (Total Dissolved Solids) is one of the most significant factors that influence its quality. Many people wonder if water with 70 TDS is good for health. The answer is not straightforward because the ideal TDS level for drinking water depends on several factors, including the type of dissolved solids in the water. In this blog, we’ll delve into whether 70 TDS water is beneficial or potentially harmful to health.

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Is 70 TDS Water Safe to Drink?

Yes, water with a TDS level of 70 ppm is generally safe to drink and falls within the acceptable range of low TDS water. In fact, 70 TDS is considered to be on the lower end of the scale, and it is typically found in purified or distilled water.

Low TDS Water and Its Health Implications:

  • Safety: Water with a TDS of 70 is free from contaminants and is considered safe for consumption. However, it is important to note that while it is safe, it may lack minerals that contribute to your daily nutrient intake.

  • Mineral Deficiency: Water with a TDS of 70 may not have sufficient essential minerals like calcium, magnesium, and potassium, which are important for bone health, heart function, and electrolyte balance. This makes the water taste neutral or flat, and long-term consumption of such water may lead to mineral deficiencies if not supplemented through diet.

  • Taste: Low TDS water tends to taste more neutral or bland since it contains fewer dissolved minerals. Many people prefer water with a higher TDS because it has a better flavor due to the presence of natural minerals.

What is TDS in Water?

TDS (Total Dissolved Solids) refers to the total amount of dissolved substances, such as minerals, salts, metals, and other organic and inorganic compounds in water. These substances are measured in parts per million (ppm) or milligrams per liter (mg/L). TDS levels can vary widely depending on the source of the water, the treatment process, and whether the water is naturally occurring or processed.

Water with a TDS level of 70 ppm indicates that there are 70 milligrams of dissolved solids in each liter of water. These solids can include a variety of substances, both beneficial and potentially harmful, depending on their nature.

What is the Ideal TDS for Drinking Water?

The ideal TDS range for drinking water typically falls between 150–300 ppm. This range strikes a balance between purity and mineral content, ensuring that water is both safe to drink and beneficial for health.

Here’s a quick guide to understanding various TDS ranges:

  • Low TDS (0–150 ppm): While this water is safe to drink, it may taste flat, and long-term consumption may lead to mineral deficiencies unless compensated by diet.

  • Optimal TDS (150–300 ppm): This is the healthiest range for drinking water. It contains beneficial minerals and offers great taste, making it ideal for hydration and overall health.

  • High TDS (300–500 ppm): Water with high TDS may have a salty or bitter taste, and if the dissolved solids are contaminants, it could be harmful.

  • Very High TDS (500+ ppm): Water with a TDS higher than 500 ppm may contain harmful levels of contaminants, making it unsafe for consumption without treatment.

What Are the Benefits and Drawbacks of Drinking 70 TDS Water?

Benefits of 70 TDS Water:

  • Purity: Water with 70 TDS is free from harmful bacteria, chlorine, and other contaminants, making it safe for consumption.

  • Suitable for Sensitive Health Conditions: If you have specific health conditions that require pure water, such as kidney problems, 70 TDS water may be ideal as it has a low mineral content.

  • Good for Hydration: Since the water is free from harmful solids, it helps with hydration without introducing potentially harmful substances.

Drawbacks of 70 TDS Water:

  • Lack of Essential Minerals: The biggest drawback of 70 TDS water is that it may lack important minerals like calcium, magnesium, and potassium. These minerals are essential for your body’s day-to-day functions, including muscle contraction, bone strength, and heart function.

  • Flat Taste: Water with low TDS, like 70 ppm, can taste bland because it lacks the natural minerals that add flavor and enhance the overall drinking experience.

  • Long-Term Health Effects: Drinking water with consistently low TDS without adequate mineral intake from other sources may lead to mineral deficiencies over time. It is essential to balance low TDS water consumption with a diet that provides necessary minerals.

Can You Improve the Mineral Content of 70 TDS Water?

Yes, there are ways to enhance the mineral content of water with 70 TDS. If you prefer water with a higher mineral content, you can consider the following:

  1. Mineral Filters: Install a mineral filter after your RO system to add essential minerals back into the water, ensuring a balanced TDS level.

  2. TDS Controller: Many RO purifiers come with a TDS controller that adjusts the mineral content in purified water. A TDS controller can help increase the TDS level to a more optimal range (150–300 ppm).

  3. Alkaline Water: Alkaline water is often enriched with beneficial minerals and can be a great option to balance the low TDS levels in your water.

How to Test the TDS of Your Drinking Water?

To check if your water’s TDS is around 70 ppm, you can use a digital TDS meter. These devices are affordable and easy to use. Here’s how you can test your water’s TDS:

  1. Calibrate the meter with distilled water (if necessary).

  2. Dip the meter in your glass of drinking water.

  3. Read the result: The TDS value will be displayed in ppm.

By regularly testing the TDS of your water, you can ensure that the water quality remains within the desired range for health benefits.

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Conclusion: Is 70 TDS Water Good for Health?

In conclusion, water with 70 TDS is safe to drink and falls within the low range of the TDS scale. However, while it is free from harmful contaminants, it may lack the essential minerals your body needs for optimal health. Drinking low TDS water occasionally is fine, but for long-term consumption, it is important to ensure that your water provides enough minerals. Consider using a TDS controller or mineral filter to enhance the quality of your drinking water.

Accurate testing is essential for water safety. Explore current TDS meter price options and find reliable devices that suit both domestic and commercial use.

FAQs:

1. Is 70 TDS water safe to drink?

Yes, 70 TDS water is generally safe to drink as it falls within the low TDS range. However, it may lack minerals that are beneficial for health.

2. Can 70 TDS water cause mineral deficiency?

Drinking 70 TDS water regularly without adequate mineral intake from food may lead to mineral deficiencies over time. It’s important to supplement your diet with minerals like calcium, magnesium, and potassium.

3. What TDS level is considered ideal for drinking water?

The ideal TDS range for drinking water is between 150–300 ppm, providing a good balance of taste and beneficial minerals.

4. How can I increase the TDS in 70 TDS water?

You can use a TDS controller or install a mineral filter in your RO system to add minerals back into the water, bringing it closer to the optimal TDS range of 150–300 ppm.

For more insights into TDS levels and their impact on your water quality, check out our blog: What is the Minimum TDS for Drinking Water?.