Dangerous to drink reverse osmosis water?

There are many opinions on this subject. As with many other things, it depends on several factors. For most health issues, it is rare that ONE thing is CAUSE. Most often, there is an interaction between several factors and often the word COCKTAIL is used. Under certain conditions, it may be dangerous to drink reverse osmosis water in raw form, ie without adding minerals.

If, for maybe 10 years, you have been drinking reverse osmosis water WITHOUT added minerals AND AT THE SAME TIME eating unhealthy AND have difficulty taking up certain minerals AND maybe also other things, then drinking reverse osmosis water may be problematic because such water is aggressive '- see explanation below.

I rely on the precautionary principle by recommending one of these mineral filters as the last link in your reverse osmosis plant.

Reverse osmosis removes many substances from the water, both the good and the bad.

Reverse osmosis plants remove 90-99% of all solids in the water. Reverse osmosis removes inorganic minerals, pollutants, including viruses, bacteria, pesticides, arsenic, fluorine, drugs, mercury, nitrate, microbes, heavy metals, all radioactive materials and much more. The presence of other hard metal minerals (some are radioactive!) is suspected of causing more degenerative diseases.

Inorganic versus organically bound minerals

In relation to photosynthesis, plants absorb the necessary minerals from the earth's crust, which consists of dead inorganic minerals. When these elements or minerals in the photosynthesis are associated with eg. carbon they become ORGANIC bound minerals that can be processed by humans.

We humans primarily get minerals from the food we eat. Man needs and can best absorb organically bound minerals that are only available in living organisms such as plants and vegetables. Inorganic bound minerals, for example found in tap water, can well be absorbed by the body, but to a much lesser extent, only approx. 6-30 pct. So it's not from the water you have to expect to cover your daily mineral need. On the other hand, the minerals in the tap water help maintain a balance that makes the body's own minerals not leach out!


Water is called a universal solvent. The cleaner the water, the more aggressively it attacks "something" that can be dissolved. Therefore, clean water is very clean and it can also purify or remove the body's own minerals and bring them out into the urine. It is therefore important to add calcium and magnesium so that the bones do not descale.

A few years ago, I believed in the argument that people have been drinking rainwater for millennia. Now I am not so sure that today we can compare rainwater and osmosis water simply by measuring the microsiemens ​​(µS) value. And we cannot compare the man who lived many thousands of years ago, with the people of our time in an industrialized polluted world. Rainwater and osmosis water are NOT the same. Rainwater may contain ions (electrolytes) that osmosis water does NOT contain.


Reverse osmosis water leaches the body's minerals or said in another way: It dissolves and secretes the minerals. If we go one step further, one can say that water WANTS to dissolve with something. There is a reason why we use water to clean. Window cleaners use osmosis water WITHOUT additives.

Reverse osmosis systems for drinking water may or rather MUST be added with a mineral filter, typically adding calcium, sodium, magnesium and potassium. Addition of these 4 minerals is enough to make the water neutral, ie. that the water does not wash out or steal minerals from the body. If the reverse osmosis system does not already have a mineral filter as the last filter, it is easy to add a mineral filter. Or add himalaya salt or similar

It is NOT sufficient to eat many minerals and at the same time drink pure osmosis water. I got a tip from a wise woman: Boil some local stones (to clean them) and put them in your water container. The water will absorb minerals from the stones. This is just an extra measure to add osmosis water minerals

I repeat: The problem of osmosis water is NOT the poor content of minerals, ie you do not get the minerals that the osmosis plant has removed from the water. The problem is that osmosis water is aggressive and absorbs the good minerals of the body, which is thereby excreted via the urine. Drinking osmosis water over a longer period (several years) deprives the body of its good minerals. Therefore, minerals must be added to the osmosis water BEFORE drinking it.

purified-water.dkContact • last update: 11 Jul 2019