The Impact of Weight Loss Drugs on Muscle Loss

Weight loss drugs like Mounjaro and Wegovy have revolutionized obesity treatment but can have a hidden downside. Studies show that these medications can cause substantial lean muscle loss, equivalent to ten years of aging, which can result in decreased strength and frailty in older individuals. Experts now caution against the dangers of rapid weight loss induced by drugs such as Mounjaro and Wegovy, which can lead to a quick depletion of lean muscle mass. In 2024, over one billion people globally were reported to have obesity, making weight loss treatments like Wegovy and Mounjaro potentially impactful. However, these drugs may lead to significant muscle loss along with fat, particularly affecting older adults at risk of frailty and falls.