People with breathing conditions like asthma, COPD, or seasonal allergies need to be careful about the foods they eat. A healthy meal supports maintaining a strong body, particularly the lungs. Seating position changes and pursed lip breathing are two methods for relieving breathing problems. Certain foods may lead to increased mucus production, inflammation, and other respiratory issues. This article discusses six of the worst foods for people with this issue. The worst food for breathing problems Dairy products Dairy products like milk, cheese, and yogurt can be harmful for people with breathing issues. These products contain casein, a protein that can cause inflammation and mucus production in the airways, making breathing difficult. Fried foods Fried foods contain a lot of trans fats, which can cause inflammation. This can aggravate respiratory symptoms and make breathing difficult. Fried foods are also high in calories and can contribute worsening breathing issues. Processed meats Processed meats, such as sausages, bacon, and other red meats, contain a lot of sodium and preservatives, which can cause inflammation and fluid retention. This can make breathing difficult, particularly for those suffering from COPD. Sugar Sugar is a major inflammatory factor in the body, and can exacerbate breathing problems.