What is NAC and is it worth taking?

N-acetyl cysteine (NAC) is a semi-essential amino acid that our body produces using other amino acids, but it has been proven to be a great support to respiratory health. That’s why it’s often taken as a supplement to provide additional support during times of respiratory distress. It has proven to help loosen mucus in air passageways while also reducing inflammation in your bronchial tubes and lung tissue.