What dosing of NAC for congestion?

For congestion, Andrew Huberman recommends taking N-acetylcysteine (NAC) in doses ranging from 600 to 900 milligrams, three times a day. He notes that NAC is a powerful mucolytic, meaning it helps clear mucus from the sinuses, offering significant relief from sinus pressure without the rebound effects associated with some decongestants 1.

Additionally, Ben Greenfield mentions that NAC can assist with clearing congested lungs and sinuses, stating a typical dosing range of 600 to 1,200 milligrams daily. He highlights its antioxidant properties and potential benefits in detoxification, though he advises consulting with a physician before starting any supplement regimen 2.