GLP‑1 medicines like Ozempic have helped many people with type‑2 diabetes. They lower blood sugar and can help people lose weight. However, the drugs do not work the same for everyone.
A new study from Japan looked at 92 adults who started GLP‑1 therapy. Researchers watched them for a full year. They measured weight, body fat, cholesterol, blood sugar and asked about eating habits.
How the drugs affect hunger
GLP‑1 drugs boost insulin release and calm appetite. Some people lose a lot of weight, while others only lose a little.
Three common eating styles
- Emotional eating: eating to feel better when upset.
- External eating: eating because food looks, smells or tastes tempting.
- Restrained eating: trying hard to limit food intake.
During the study, most participants lost weight, body fat and cholesterol. Muscle stayed the same. Blood sugar improved a bit, but not enough to be called a strong change.
What the habits meant for the medicine
After three months, people reported less emotional and external eating and a bit more restrained eating. By twelve months, emotional and restrained eating had gone back to where they started.
Only one habit stood out. Participants who ate a lot because food was appealing (high external eating) kept improving. They lost more weight and had better blood‑sugar control than those who did not.
Why emotional eaters saw less benefit
The study did not find a clear link between emotional or restrained eating at the beginning and the final results. The steady drop in external eating was linked to better outcomes.
What comes next
The researchers note that the study was observational and relied on self‑reported answers. This means they cannot prove that eating style caused the different results. People in the study might also have been especially motivated to improve their health.
"Our findings suggest a possible link between external eating and how well GLP‑1 drugs work," said lead researcher Yabe. "More large‑scale or controlled trials are needed before doctors can use this information in everyday practice. If future studies confirm the link, simple questionnaires could help doctors choose the best treatment plan."