GLP-1 medications have transformed diabetes and obesity treatment, but emerging research suggests their benefits could extend far beyond those purposes — potentially even aiding in cancer prevention and survival. "We know that a lower BMI equals a better prognosis with breast cancer." "So if the secondary effect of taking a GLP-1 means you’re going to lose weight, then that’s a benefit, because we know you’re going to do better with breast cancer." More research neededRourke emphasized that researchers have not yet proven that GLP-1 medications directly affect breast cancer cells. To patients who are considering starting GLP-1s, Rourke offered the following advice.