Does Rhonda Patrick recommend NAC (N-Acetyl Cysteine)?
Yes — Rhonda Patrick has directly recommended NAC (N-Acetyl Cysteine).
Published research rates it moderate evidence. Of Rhonda Patrick's 39 tracked claims, 18 are supported or partially supported by studies on PubMed.
Evidence last reviewed May 2026
Rhonda Patrick on NAC (N-Acetyl Cysteine) — 39 claims
“a study combining NAC with glycine — called GlyNAC — which showed substantial improvements in multiple aging biomarkers in older adults including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.”
A study combining NAC with glycine (GlyNAC) showed substantial improvements in multiple aging biomarkers in older adults, including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.
The claim is directly supported by PMID 35975308, an RCT titled 'Supplementing Glycine and N-Acetylcysteine (GlyNAC) in Older Adults Improves Glutathione Deficiency, Oxidative Stress, Mitochondrial Dy…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial reactive oxygen species depleting glutathione with aging.
The most directly relevant study is PMID 35975308, an RCT examining GlyNAC (glycine + NAC) supplementation in older adults, which reported improvements in glutathione deficiency, oxidative stress, and…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial reactive oxygen species depleting glutathione with aging.
The 10 provided studies do not directly address the specific mechanistic claim that NAC supplementation partially breaks the cycle of oxidative stress driven by mitochondrial ROS depleting glutathione…
“a study combining NAC with glycine — called GlyNAC — which showed substantial improvements in multiple aging biomarkers in older adults including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.”
A study combining NAC with glycine (GlyNAC) showed substantial improvements in multiple aging biomarkers in older adults, including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.
None of the 10 retrieved studies directly investigate GlyNAC (glycine + NAC combined) supplementation in older adults for aging biomarkers. The studies provided cover NAC in unrelated contexts such as…
“a study combining NAC with glycine — called GlyNAC — which showed substantial improvements in multiple aging biomarkers in older adults including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.”
A study combining NAC with glycine (GlyNAC) showed substantial improvements in multiple aging biomarkers in older adults, including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.
None of the 10 retrieved studies directly examine the GlyNAC (glycine + NAC) combination in older adults for aging biomarkers. The provided literature covers NAC in unrelated contexts such as COPD exa…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial reactive oxygen species depleting glutathione with aging.
None of the 10 provided studies directly address the specific mechanistic claim that NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial ROS depleting glutath…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial reactive oxygen species depleting glutathione with aging.
None of the 10 provided studies directly address the specific mechanism claimed by Rhonda Patrick — that NAC supplementation partially breaks the cycle of oxidative stress driven by mitochondrial ROS…
“a study combining NAC with glycine — called GlyNAC — which showed substantial improvements in multiple aging biomarkers in older adults including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.”
A study combining NAC with glycine (GlyNAC) showed substantial improvements in multiple aging biomarkers in older adults, including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.
None of the 10 retrieved studies address GlyNAC (glycine + NAC combined) supplementation in older adults or any of the specific aging biomarkers claimed (oxidative stress, mitochondrial function, infl…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress driven by mitochondrial reactive oxygen species depleting glutathione with aging.
The GlyNAC RCT (PMID: 35975308) provides the most direct support, demonstrating that NAC supplementation (combined with glycine) improved glutathione deficiency, oxidative stress, and mitochondrial dy…
“a study combining NAC with glycine — called GlyNAC — which showed substantial improvements in multiple aging biomarkers in older adults including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.”
A study combining NAC with glycine (GlyNAC) showed substantial improvements in multiple aging biomarkers in older adults, including oxidative stress, mitochondrial function, inflammation, muscle strength, and cognitive function after 24 weeks.
PMID 35975308, a randomized clinical trial on GlyNAC supplementation in older adults, directly supports the core of the expert's claim, reporting improvements in glutathione deficiency, oxidative stre…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress caused by age-related mitochondrial glutathione depletion.
The GlyNAC RCT (PMID: 35975308) provides the most direct support, demonstrating that NAC supplementation (combined with glycine) improved glutathione deficiency, oxidative stress, and mitochondrial dy…
“providing both precursors together is more effective than either alone.”
Providing both NAC and glycine together as glutathione precursors is more effective than either alone.
The GlyNAC RCT (PMID: 35975308) directly supports the claim, finding that combined glycine and NAC supplementation in older adults improved glutathione deficiency, oxidative stress, mitochondrial dysf…
“NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, which is relevant for conditions ranging from COPD to liver disease to psychiatric disorders.”
NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, relevant for conditions ranging from COPD to liver disease to psychiatric disorders.
The mechanistic claim that NAC restores glutathione and thereby exerts anti-inflammatory effects is supported across multiple study types in the literature provided. The GlyNAC RCT (PMID: 35975308) di…
“NAC has a protective acetyl group that stabilizes cysteine in circulation and allows it to be taken up by cells for glutathione synthesis.”
NAC has a protective acetyl group that stabilizes cysteine in circulation and allows it to be taken up by cells for glutathione synthesis.
The expert's claim describes the pharmacokinetic mechanism by which NAC acts as a cysteine prodrug — specifically that the acetyl group stabilizes cysteine in circulation and facilitates cellular upta…
“NAC — N-acetylcysteine — is one of the most effective oral methods for raising glutathione because it provides cysteine, the rate-limiting amino acid for glutathione synthesis.”
NAC is one of the most effective oral methods for raising glutathione because it provides cysteine, the rate-limiting amino acid for glutathione synthesis.
The expert's claim is a well-established mechanistic principle in biochemistry — that cysteine is the rate-limiting substrate for glutathione synthesis and that NAC serves as a cysteine precursor — bu…
“NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, which is relevant for conditions ranging from COPD to liver disease to psychiatric disorders.”
NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, relevant for conditions including COPD, liver disease, and psychiatric disorders.
The expert's mechanistic claim that NAC restores glutathione and thereby exerts anti-inflammatory effects across COPD, liver disease, and psychiatric disorders is biologically plausible and broadly co…
“NAC supplementation can partially break this cycle.”
NAC supplementation can partially break the cycle of oxidative stress caused by age-related mitochondrial inefficiency depleting glutathione.
The GlyNAC RCT (PMID: 35975308) directly supports the mechanistic claim, finding that NAC supplementation (combined with glycine) improved glutathione deficiency, oxidative stress, and mitochondrial d…
“The rationale is that glycine is the other rate-limiting amino acid for glutathione, and providing both precursors together is more effective than either alone.”
Providing both NAC and glycine together is more effective than either alone for glutathione synthesis, because glycine is also a rate-limiting amino acid for glutathione.
The expert's mechanistic claim that glycine is also rate-limiting for glutathione synthesis (alongside cysteine) is biologically plausible and consistent with established biochemistry, and PMID 359753…
“NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, which is relevant for conditions ranging from COPD to liver disease to psychiatric disorders.”
NAC's ability to restore glutathione may be one mechanism by which it has anti-inflammatory effects, relevant for conditions including COPD, liver disease, and psychiatric disorders.
The expert's mechanistic claim that NAC restores glutathione and thereby exerts anti-inflammatory effects is biologically plausible and directionally supported by several studies in the provided list.…
“NAC has a protective acetyl group that stabilizes cysteine in circulation and allows it to be taken up by cells for glutathione synthesis.”
NAC has a protective acetyl group that stabilizes cysteine in circulation and allows it to be taken up by cells for glutathione synthesis.
The expert's claim describes a specific mechanistic pathway — that NAC's acetyl group stabilizes cysteine in circulation and facilitates cellular uptake for glutathione synthesis. None of the 10 provi…
Other supplements Rhonda Patrick discusses
Claims are extracted from publicly available podcasts and videos, attributed to their source, and compared against PubMed research. This is educational information only — consult a healthcare provider before starting any supplement.
Back to Rhonda Patrick