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Head-to-head evidence comparison — which supplement is right for you?
Luteolin wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
4 of 4 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
8 of 9 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Luteolin and NAC have evidence — compare verdict strength side-by-side.
100-400mg daily
With meals, Can divide into 2-3 doses
Luteolin extract or Luteolin-quercetin complex
600-1800mg daily
Away from food, Split into 2-3 doses
NAC capsules or powder
2-4 weeks
2-4 weeks
4-8 weeks
4-8 weeks
2-4 weeks
1-2 weeks
Immediate
Hepatoprotective activity of medicinal plants, their phytochemistry, and safety concerns: a systematic review
Zeitschrift fur Naturforschung. C, Journal of biosciences (2025) · Systematic review
The application of natural products derived from medicinal plants in treating liver injuries is rooted in their efficacy, cost-effectiveness, and safety profile, contributing to their popularity.
Intervention modalities for brain fog caused by long-COVID: systematic review of the literature
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2024) · Systematic review · n=17
Noninvasive brain stimulation and hyperbaric oxygen therapy showed promising results in the treatment of brain fog symptoms caused by long-COVID, with improved perfusion and cortical excitability.
Exploring the efficacy and molecular mechanism of Danhong injection comprehensively in the treatment of idiopathic pulmonary fibrosis by combining meta-analysis, network pharmacology, and molecular docking methods
Medicine (2024) · Meta analysis · n=896
These results provided scientific basis for the clinical use of Danhong injection for the treatment of IPF, and provided a new direction to explore the potential mechanism of action of Danhong injection.
Efficacy of N-Acetylcysteine in Polycystic Ovary Syndrome: Systematic Review and Meta-Analysis
Nutrients (2025) · Meta analysis · n=2515
NAC was associated with a statistically significant increase in progesterone (SMD 0.95, 95% CI: 0.13-1.77, p = 0.02) and endometrial thickness (SMD 0.58, 95% CI: 0.10-1.06, p = 0.02) compared to the placebo and other drugs (SMD 0.71, 95% CI: 0.48-0.94, p < 0.0001).
Efficacy of N-acetylcysteine for patients with depression: An updated systematic review and meta-analysis
General hospital psychiatry (2024) · Meta analysis · n=904
Our findings indicate that adjunctive NAC can ameliorate depressive symptoms in patients with psychiatric problems, particularly bipolar disorder.
N-acetylcysteine as a treatment for substance use cravings: A meta-analysis
Addiction biology (2024) · Meta analysis · n=623
The most targeted substance in the clinical trials was alcohol (3/9; 33.3%), followed by tobacco (2/9; 22.2%) and multiple substances (2/9; 22.2%).
Evidence limited to systematic reviews and animal studies. Low bioavailability of standard luteolin forms significantly limits effectiveness. Human RCT data lacking for direct neuroprotective effects.
Meta-analysis showed efficacy particularly in bipolar disorder patients. Effect appears as adjunctive treatment. Individual response varies significantly.
AI-estimated from published studies. Interpret as directional guidance.
Luteolin has a higher evidence score (8.5/10 vs 8/10) and wins in 2 of 3 categories.
For reduce inflammation, Luteolin has a higher relevance score (75 vs 60).
No known interactions between Luteolin and NAC have been documented in our database. However, always consult a healthcare provider before combining supplements.