FACTNESS- science-based fact-checking applied to the fitness/wellness influencer ecosystem

Portugal

Description

Project Factness aims to monitor Portuguese fitness and wellness influencers, fact-check health claims, and investigate the supplement industry. By combining scientific expertise and investigative journalism, it seeks to expose misinformation, promote accountability, and empower the public with reliable, evidence-based health information.
Factness combines investigation journalism, disinformation & pseudoscience debunking articles, and multimedia formats, including humour content for broader reach. It involves Público journalists, CHRC/NOVA Medical School researchers, OSInt expert Inês Narciso, and a well-known Portuguese comedian, with the support of a wide advisory board of scientists.

“Health disinformation, especially in the field of nutrition, has become a silent threat, driven by social media offering quick, unfounded, and dangerous solutions through simplistic messages lacking scientific basis but with real health consequences. Defining and implementing effective strategies to combat this growing misinformation is now an urgent priority.
This research project emerges from a partnership between academic institutions and journalism. It represents a firm commitment to truth, science, and the protection of public and individual health. We believe this joint effort — between quality journalism and science — is a crucial step toward safeguarding public health and strengthening trust in knowledge, science, and responsible communication, which are fundamental pillars of more informed, critical, and healthy societies.”   — Conceição Calhau, Full professor & leading researcher at Nova Medical School

 

Journalistic outputs

Project website: Factness  In Público
High cortisol: how misinformation created a pseudo-problem and proposed a pseudo-solution   In Público 01/03/2026
Banned in Denmark, ashwagandha is causing concern among European authorities   In Público 02/03/2026
House broken into, locks on the door, in food supplements   In Público 06/03/2026
Conspiracies and misinformation inspire star of “integrative medicine”   In Público 26/04/2026
In the new era of alternative therapies, desperation is combined with the desire to sell   In Público 26/04/2026
Medical and nutrition associations are preparing to tighten the noose on pseudoscience   In Público 27/04/2026
The problem is rarely just the sugar  In Público 02/05/2026
Ultra-processed foods: are we oversimplifying a complex problem?   In Público 03/05/2026
No, saturated fat is not good for your health — not even the trendy pork rinds   In Público 04/05/2026
Misinformation feigns scientific debate to deny the cancer risk of red meat   In Público 12/05/2026
Red meat: the story of a study handpicked as a weapon of disinformation   In Público 12/05/2026

 

Project Team

Media outlet

Público

Lisbon, Portugal
https://www.publico.pt/

Teresa Firmino

Science Editor
Portugal

Público

Teresa Firmino

Research organisation

Comprehensive Health Research Centre, NOVA Medical School

Lisbon, Portugal
https://www.chrc.pt/en

Maria da Conceição Calhau

Full professor and vice-dean for community engagement
Portugal

Comprehensive Health Research Centre, NOVA Medical School

Maria da Conceição Calhau