All water is “light” and tap water, as healthy as the bottled

Water can not be attributed to healing properties, the one that comes out of the faucet is as good for health as the packaging, water is always “light” , the plastic in which it is bottled has no contaminants … are some of the Certainties that explain the experts to dismantle the false myths about this element.

On the occasion of World Water Day, experts from the Universitat Oberta de Catalunya (UOC) have explained that there are popular beliefs of all kinds, some true but many others false.

Popular Myths

“Water can not be attributed to healing properties,” said the biologist and professor of the UOC’s Health Studies, Alicia Aguilar, who points out that “there are many types of water (tap, bottled, low mineralization, Etc.) and each has its characteristics, which may or may not contribute to some organic functions.

Highly mineralized waters, such as calcium or hypersodium, may be inadvisable for example in cases of kidney problems, stones, hypertension or for babies, and fluoridated water, on the other hand, may be recommendable for dental protection, has pointed out The biologist.

The hardness of water is usually another controversial aspect. The biochemistry Carmen Carrión, explains that the hardness is conditioned by the amount of ions in solution , especially calcium andmagnesium .”

From the point of view of human consumption, comparison reports published by the World Health Organization (WHO) have not found scientific evidence that it is harmful to health.

Carrión only points out that hard water is less recommended for people with skin alterations and in some cases “can cause eczema” . The level of hardness or mineralization, moreover, can influence the taste of water, he points out.

There is also the popular myth that tap water is of worse quality than the bottled, topical that denies Aguilar rotundidad.

“Tap water undergoes exhaustive analytical controls of its physical, chemical and microbiological characteristics that guarantee quality and safety for human consumption. That the water is from the tap does not mean that it is worse than the bottled, “according to Aguilar.

“The bottled water, in fact,” adds the biologist, “is not sterile, it does not guarantee zero microorganisms of origin. What it ensures, also by means of very strict controls, is that there are no pathogens. “

Experts recall that packaging labels have to report on the origin of the water and the type (natural mineral, prepared, etc.) of the company name, date of preferential consumption and conservation recommendations, among other things.

Aguilar has pointed out that in addition, a class of water can not attribute its own quality that is characteristic of water in general, “as light water, because everything is.”


Another myth that Aguilar dismantles is that water bottled in both plastic and glass bottles is free of contaminants, although she recommends the glass “because it is an easy-to-clean material that can be disinfected, washed at high temperatures and, therefore, , Reuse, and is a more environmentally friendly material “.

Bottled water. EFE / JuanJo Martín

On aluminum bottles used by hikers to transport water, the biologist says that “they are a good choice, because this material is light, does not let light pass and is quite resistant to shocks” , although there are experts who recommend checking That the drum has an inner coating so that the aluminum is not in contact with the water and avoid possible migrations of substances that may be a health risk.