Researchers at the University of Florida have uncovered a surprising link between dietary habits and lung cancer development, a connection rarely spotlighted compared to cancers like liver or pancreas-related ones. Ramon Sun, lead scientist and director of UF’s Centre for Advanced Spatial Biomolecule Research, noted that what we consume may heavily influence lung health.
Their research, published in the renowned Nature Metabolism journal, employed cutting-edge molecular analysis tools. These technologies revealed that glycogen—an energy-storing sugar compound—nourishes lung adenocarcinoma cells, the most common type of lung cancer globally. Sun compared glycogen’s role to a “candy store for cancer,” highlighting how tumors thrive on this sugary fuel.
Drawing comparisons to Lafora disease, a rare brain disorder caused by glycogen accumulation, scientists questioned whether a similar process occurs in lung cancer. They found a clear connection—cancer cells eagerly consume excess glycogen, accelerating growth and spreading aggressively.
The study further tested this theory by feeding lab mice a typical Western diet loaded with unhealthy fats and processed sugars, notably fructose. Results showed heightened glycogen buildup and faster tumor progression. However, when glycogen levels dropped, cancer advancement noticeably slowed.
This groundbreaking discovery suggests diets rich in sugar and fat may quietly worsen or trigger lung cancer risk. Fortunately, existing medications developed for Lafora disease can reduce glycogen levels and potentially aid treatment.
Experts stress adopting healthier eating, regular physical activity, and limiting alcohol intake as powerful tools for prevention, echoing past anti-smoking campaigns.
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