Ketogenic Diet And Ketone Bodies As Clinical Support For The Treatment Of SARS CoV 2—Review Of The Evidence

This review examined whether ketogenic diets (very low-carb, high-fat diets) and ketone bodies (compounds produced when the body burns fat for fuel) could help support treatment of COVID-19. The researchers analyzed evidence from laboratory studies, animal experiments, and human observations to understand how these nutritional approaches might work against the virus.

The study found several promising mechanisms by which ketogenic diets and ketone bodies might help fight COVID-19. These include potentially blocking the virus from entering cells, improving mitochondrial function (the powerhouses of our cells), and supporting the immune system's response. A key ketone body called beta-hydroxybutyrate appeared to help immune cells function better by providing an alternative fuel source and reducing harmful metabolic changes caused by the infection.

In animal studies, ketogenic diets protected against weight loss, low oxygen levels, and lung damage, while improving survival rates in young mice. Human studies showed that people following ketogenic diets had better survival rates, reduced need for hospitalization, and protection against metabolic problems after COVID-19 infection. However, the researchers noted that COVID-19 infection itself can sometimes cause dangerous ketoacidosis, a serious condition involving too many ketones.

While these findings are encouraging, the authors emphasize that more rigorous scientific validation is needed before ketogenic approaches can be recommended as standard supportive care for COVID-19. For patients interested in metabolic health, this research highlights how nutritional strategies that optimize cellular energy production may support immune function during viral infections, though any dietary changes during illness should be discussed with healthcare providers.