Water glass and notebook with illustrative charts
Illustrative image. · AI
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  1. A difference can be small or large
  2. Context is decisive
  3. Applied to statements about water
  4. Main idea

A difference can be small or large

The expression "there was an effect" hides the important question: how large was the difference? A result may be measurable in a group and yet have limited practical importance for everyday life.

Context is decisive

It matters what was compared, how many participants were involved, how long the study lasted, and what result was pursued. A change in a marker is not automatically a benefit that a person experiences.

Applied to statements about water

If a message claims that DDW "works", ask: what was measured, how much changed, compared to which group, and how certain is the result? These questions prevent disproportionate conclusions.

Main idea

The size of the effect is more informative than a simple favorable or unfavorable verdict.

Disclaimer: This material is educational. It does not diagnose, treat, or replace the recommendations of a health professional.
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