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Research finding
People with neurasthenia improved after taking lingzhi polysaccharides
People with who took a lingzhi polysaccharide for 8 weeks improved more than those who took a .
Controlled human trialCompares people who took it with people who did notHow the study was done
A trial: 1,800 mg three times a day, compared for 8 weeks with an identical-looking placebo.
What the researchers say
Neurasthenia covers a range of symptoms such as fatigue, insomnia and irritability. The study used one specific lingzhi polysaccharide extract.
Source
Tang W et al., Journal of Medicinal Food, 2005, 8(1): 53-58
Abstract checked Last updated: 2026-10-15
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