Eli Lilly's weight-loss drug may prevent diabetes — but there's 1 unanswered question

• A 3-year-study of Zepbound and Mounjaro found the GLP-1 drugs can help prevent diabetes.
• The weekly injections cut the risk of developing diabetes by 94% among adults with high blood sugar.
• The drugs also prompted significant weight loss: on average, 12-23% of body weight.

First, these new injectable drugs were meant to treat diabetes. Then, they became approved for weight loss. And now, a new study suggests losing weight with some GLP-1 drugs can also prevent diabetes.