The prevailing understanding of obesity as a matter of personal failing is fundamentally flawed, according to Dr. Gérald Kierzek. Speaking on France Bleu radio on Wednesday, March 4, 2026, Dr. Kierzek characterized obesity not as a consequence of willpower, but as a chronic, inflammatory, and complex disease demanding comprehensive and early intervention.
“Reducing obesity to a question of behavior is not only false, but as well carries heavy consequences for those who suffer from it,” Dr. Kierzek stated. The traditional perception of obesity – often linked to overeating and a lack of exercise – is a “caricature” that allows for easy judgment and a dismissal of the underlying biological and psychological factors at play.
The core of the issue, Dr. Kierzek explained, lies within adipose tissue, long considered an inert substance. In individuals with obesity, this tissue transforms into a “sick organ,” actively producing inflammatory substances, stress hormones, and chemical messengers that disrupt the entire body. This process results in what is termed “chronic low-grade inflammation.”
This inflammation triggers a cascade of effects, impacting pancreatic function and potentially leading to diabetes, contributing to arterial blockage and increasing cardiovascular risk, damaging joints, affecting liver function, disrupting sleep patterns, and even influencing brain function and mood.
Further complicating the condition is a disruption of the brain’s appetite regulation system. The brain adjusts to a higher weight set point, actively working to maintain it, and sending conflicting signals that perpetuate the cycle.
The societal stigma surrounding obesity exacerbates these challenges. Judgment, criticism, and negative remarks contribute to stress, anxiety, and shame, all of which can further promote weight gain and inflammation, creating a vicious cycle.
Dr. Kierzek emphasized that a medical approach is essential. Obesity, he argues, should be treated like any other chronic illness – with a holistic, early, and long-term management plan. This approach moves away from restrictive diets, which are often ineffective in the long run, and towards a multidisciplinary strategy encompassing medical monitoring, nutritional guidance, psychological support, and tailored physical activity.
In some cases, medical treatments or surgical interventions may be appropriate, not as shortcuts, but as legitimate medical tools. The key, Dr. Kierzek stressed, is to move beyond judgment, recognize the individual behind the weight, and offer assistance without moralizing or assigning blame.
A Facebook video posted December 15, 2025, by Doctissimo, featuring Dr. Kierzek and Dr. Antoine Epin, reinforces the importance of using respectful language, advocating for the term “people in a situation of obesity” rather than stigmatizing labels.
France Bleu also reported on March 4, 2025, that an anti-inflammatory diet can be beneficial for those with obesity and related joint pain, highlighting the connection between inflammation and the condition.
