The world's top health body does not stop receiving questions every time it issues a new recommendation. Should sweetener be consumed or not? Is it convenient or not to continue vaccinating children against Covid? And further back in time: Was it convenient to wear the mask during the pandemic? These are just some of the questions that remained after health guidelines released by the World Health Organization.

The last one was known this week, when he advised against the use of sweeteners and linked them – almost hypothetically – to serious health problems.