Patients in the experimental group will receive two sachets of Glutapak-R every twelve hours for up to six weeks alongside treating physician-chosen EGFR therapy. Patients in the control group will receive a standard-of-care diet.~All patients will receive nutritional counseling every two weeks.
This open-label randomized clinical trial aims to evaluate the glutamine plus Lactobacillus reuteri supplementation effect in a standard-of-care diet in EGFR mutant patients with advanced non-small cell lung cancer (NSCLC) under tyrosine kinase inhibitors (TKIs) therapy.~The main question it aims to answer is ¿What is the effect of glutamine plus L. reuteri added to an astringent diet in preventing diarrhea generated by TKI therapy?~Patients will receive an astringent diet supplemented with 10 grams of glutamine and L. reuteri (100 million CFU). Researchers will compare the Glutamine plus L. reuteri diet with a standard astringent diet to see if TKI therapy diarrhea is prevented.