
Andrew Huberman on N-Acetyl Cysteine (NAC)
2 episodes · 5 references · 2024–2025
- Huberman takes NAC situationally (600-900mg, 3-4x/day) for immune support and as a mucolytic, not as a daily staple - Cites a study showing NAC reduced symptomatic H1N1 influenza from 79% to 25% in the treatment group - No evidence of recommending against NAC; caution is limited to sleep disruption from mucus flow
Consumption
- Takes 600-900mg three to four times per day during periods of potential infection or travel - Uses NAC situationally rather than as a daily supplement - Confirms it works as a powerful mucolytic at these doses
Benefits
- Cites study showing only 25% of the NAC group developed symptomatic H1N1 versus 79% on placebo - Describes NAC as a powerful mucolytic that effectively clears respiratory congestion - Positions NAC primarily as an immune-support and respiratory tool
Best Practices
- Recommends 1,200mg per day split into two 600mg doses for general use - For acute immune situations, uses higher doses of 600-900mg three to four times daily - Restricts intake to earlier in the day to avoid sleep disruption
Cautions
- NAC disrupted Huberman's sleep due to excessive mucus flow when taken later in the day - Restricted intake to earlier hours only to mitigate this side effect - No broader safety warnings discussed; caution is limited to timing of doses
“I started taking NAC at 600 milligrams or even 900 milligrams three to four times per day, but restricted to times when I felt like I might be coming down with an infection or I was traveling.”
How to Enhance Your Immune System | Dr. Roger Seheult
“I ended up doing that at a dosage of anywhere from 600 to 900 milligrams three times per day. Indeed, it is a powerful mucolytic.”
How to Prevent & Treat Colds & Flu
“NAC prevented the symptomatic forms caused by the H1N1 influenza virus quite efficiently. Only 25% in the NAC group developed disease versus 79% in the placebo group.”
How to Prevent & Treat Colds & Flu
“The dosage is about 1,200 milligrams per day divided into two different dosages of 600 milligrams each.”
How to Prevent & Treat Colds & Flu

