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AAT deficiency usually is diagnosed after you develop a lung or liver disease that is related to the condition. But knowing the symptoms and getting an early diagnosis is important to help prevent serious disease, especially with treatment and lifestyle changes.

The first lung-related symptoms of AAT deficiency may include shortness of breath, less ability to be physically active, and wheezing. Some people may not have any symptoms or complications. AAT deficiency can lead to lung and liver diseases.

Alpha-1 antitrypsin (AAT) deficiency happens when you do not make enough AAT protein. The AAT protein is made in your liver. This protein enters your blood and protects your organs, including the lungs, from damage. For example, your immune system is your body’s defense against bacteria and viruses but if it is overactive, it can damage your body while fighting diseases. The AAT protein prevents you from having too much inflammation in your lungs. Without enough AAT protein, your immune system may damage your lungs and lead to lung disease.

Find out what dietary supplements for exercise and athletic performance are and what they do in your body, what foods provide them, and about dietary supplements for exercise and athletic performance.

Find out what dietary supplements for exercise and athletic performance are, what they do in your body, and about exercise and athletic performance supplements.

Find out what dietary supplements for exercise and athletic performance are, what they do in your body, and about exercise and athletic performance supplements.