Dr Xand van Tulleken has dismissed social media claims about 'cortisol face' and 'cortisol belly' as 'total garbage'. Appearing on BBC Morning Live, the doctor said influencers promoting the idea that cortisol causes facial swelling or belly fat are misleading the public.
Cortisol is a vital steroid hormone produced by the adrenal glands that manages stress, metabolism, blood pressure, and immune function. Dr van Tulleken explained that cortisol is not a 'villain' and is essential for survival. He warned against buying supplements or following advice from influencers who use 'seductive scientific sounding explanations' to sell products.
Dr van Tulleken noted that very high cortisol levels, caused by tumours or steroid medication, can lead to fat redistribution, including facial adiposity or a 'moon face'. However, he stressed this is part of a medical condition that requires proper diagnosis and management, not a result of everyday stress.
He also clarified that exercise cannot change fat distribution patterns, so doing sit-ups will not specifically reduce belly fat. The doctor urged viewers to disregard the social media claims entirely.
