The Hydration for Health Initiative launches the Liq.In7 Interactive Map to access online statistics from the Liq.In7 database. According to your research needs, visualize and share key fluid intake data for one country or worldwide.


Assessment and comprehension of fluid intake patterns worldwide are important from a public health perspective.

On one hand, volume of total fluid intake (e.g. sum of water intake and intake of all other beverages) and hydration biomarkers have been linked to cognitive performance and more and more to health outcomes such as decline in kidney function, kidney stones recurrence, development of hyperglycemia, and prevalence of some components of the metabolic syndrome.


On the other hand, some fluid types have been linked to adverse health outcome such as weight gain, overweight, obesity, the development of a metabolic syndrome and type 2-diabetes. 



Here is the link to discover the Liq.In7 Interactive Map on your Desktop or Tablet.

It is however a new tool, if ever you encounter some imperfections, please try another browser and send us your feedback. We will do our best to fix it.


​Liq.In7: a unique database

The Liq.In7 surveys are conducted in a harmonized way across 3 continents (e.g. Europe, South America and Asia) and assess the local drinking habits of a representative sample of adults, adolescents and children. [1,2,3]




The assessment of fluid intake was performed through a validated 7-day fluid specific record. This 7-day fluid record was shown to be highly accurate: the mean difference between the volume recorded with the 7-day fluid record and the volume calculated with an objective biomarker (deuterium labeled water) was merely the volume of a small glass (130 mL). Moreover, the 7-day fluid record is reliable. The average difference observed between fluid intake recordings performed on 2 separate weeks was only 72 mL/d [4].


For the analysis, the different fluid types were grouped into 8 classes:

Water: tap and bottled water

Milk and milk derivatives

Hot beverages: coffee, tea and other hot beverages


Sugar sweetened beverages: carbonated and non-carbonated soft drinks, energy drinks, sports drinks and other sugared soft drinks

Diet beverages: diet/zero carbonated soft drinks, diet non-carbonated soft drinks, other diet soft drinks

Alcoholic beverages

Other beverages



Liq.In7 supplement:

1.   König, J., Stookey J.D., (2015). Assessment of Fluid Intake Across Countries Around the World: Methodological and Public Health Implications, Springer.




2.   Guelinckx I, et al. (2015) Intake of water and different beverages in adults across 13 countries. Eur J Nutr. 54 Suppl (2):S45-S55.

Kids and adolescents: 

3.   Guelinckx I, et al. (2015) Intake of water and beverages of children and adolescents in 13 countries. Eur J Nutr. 54 Suppl (2):S69-S79.


4.   Johnson, E.C., et al., Validation Testing Demonstrates Efficacy of a 7-Day Fluid Record to Estimate Daily Water Intake in Adult Men and Women When Compared with Total Body Water Turnover Measurement. J Nutr, 2017.


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