Abstract: Cancer is incredibly resilient, and a large part of its survival comes down to a superpower known as “metabolic flexibility.” Just like a hybrid car that can switch between electricity and gasoline, tumor cells can seamlessly swap their fuel sources depending on what is available in their environment. Whether they consume glucose, amino acids, or metabolic byproducts like lactate, this adaptability allows cancer cells to thrive even in harsh, low-oxygen zones where normal cells would perish. Alarmingly, this flexibility also serves as a major shield against standard treatments; when a specific drug cuts off one energy pathway, the tumor simply adapts by activating a backup route to stay alive.
To break this defensive loop, scientists are exploring “precision nutrition” strategies that aim to starve cancer of its preferred fuel sources. For instance, ketogenic diets, which are very low in carbohydrates, aim to drastically lower blood sugar and insulin levels, making it harder for highly glucose-dependent tumors to multiply. Similarly, short-term dietary restrictions targeting specific amino acids, like arginine or methionine, are being tested to exploit genetic weaknesses in certain cancers. While these diets are not standalone cures, combining them with targeted therapies shows massive promise in preclinical trials, opening up a future where a patient’s customized menu works hand-in-hand with their medical treatment to defeat resistance.
Read this full article here: https://www.news-medical.net/health/Metabolic-Flexibility-in-Cancer-How-Diet-and-Nutrition-Shape-Tumor-Survival-and-Resistance.aspx
