There is no clear evidence that suggests curd (also known as yogurt) can worsen bronchitis or that it is beneficial for bronchitis.
However, some people with bronchitis may find that consuming dairy products like curd can cause increased mucus production and congestion, which can exacerbate their symptoms. In these cases, it may be best to avoid or limit dairy intake until the symptoms have improved.
It’s always a good idea to listen to your body and avoid any foods that seem to aggravate your symptoms. If you have concerns or questions about your diet and bronchitis, it’s best to consult with your doctor or a registered dietitian.