What ORP index in water is good for health?

What is ORP index?

ORP - Oxygen Reduction Potential is an index that reflects the oxidation-reduction capacity of water, simply understood as the ability of water to donate or receive electrical charges from oxidizing substances present in it. This index can have either a negative (-) or positive (+) value and is measured in millivolts (mV).

In the process of assessing water quality, ORP and pH are always considered two key factors. There is also a very close relationship between these two values:

When ORP is negative, the water exhibits strong reducing properties, the pH will be higher, and the water will be more alkaline. Conversely, if ORP is positive, the water has stronger oxidizing properties, and the pH will decrease, causing the water to become more acidic. Nowadays, to meet the demand for quicker and more convenient measurements, many pH meters have been integrated with ORP measurement functions, allowing users to easily monitor both indices simultaneously.

Reference: Measure ORP with an Oxidation Redox Meter?

What should the standard ORP level in water be?

The ORP index has long been considered an important factor in evaluating water quality. But specifically, at what level is ORP truly suitable, safe, and beneficial for health?

According to recommendations from the World Health Organization (WHO), a good ORP level for the human body should be below -500mV. Several scientific studies have also shown that the more negative the ORP value, the greater the health benefits. Water with a highly negative ORP can support the process of cellular rejuvenation and reduce the risk of diseases related to oxidation and aging, such as diabetes and cancer.

The reason is that when water has a negative ORP, it possesses strong reducing properties, helping to donate electrical charges to neutralize free radicals in the body. This process plays an important role in enhancing oxygen supply, supporting detoxification, and contributing to strengthening the body's natural immune system.

Today, research and application of ORP have been expanded into many fields, especially in healthcare and wellness with therapies using water rich in reducing properties, and in agriculture such as hydroponics and aquaculture, to create a better environment for natural development.

To measure the ORP index, you can refer to the following methods: What are the ways to make the redox meter achieve safety index?

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