Chinese juniper

Last Updated: November 17 2022

Juniperus chinensis is a plant with folklore but no proven medical uses; is an effective insect repellant. It may have protective effects against colon cancer, and the lone rat study assessing glucose tolerance noted fairly remarkable anti-diabetic effects.

Chinese juniper is most often used for

Summary

Juniperus chinensis is a plant that is a functional house decoration as it has some insect repellant properties. It has some folklore usage for some things, which has spurred limited amounts of research into the herb. Nothing substantial has been conducted though.

Currently, we have lackluster fat burning potential and one study in rats on blood glucose. This study on blood glucose is actually quite remarkable in effect size, but it needs to be replicated in another animal models since the active drug it was compared to might not have been properly evaluated chosen. The effects on colon cancer cells appear to be promising, but no studies have compared the potency of the active component (Widdrol) against an active drug control or used any living models to test; currently preliminary.

It does have a historical use of being an abortifacient (inducing abortions) so it is probably prudent to not consume Juniperus containing products if pregnant; no studies have been conducted on this, however.

What else is Chinese juniper known as?
Note that Chinese juniper is also known as:
  • Byakushin
  • Juniperus Chinensis
Dosage information

The only animal evidence at this moment in time used 50-150mg/kg in rats, which is an estimated human dose of:

  • 550-1,600mg for a 150lb person
  • 700-2,200mg for a 200lb person
  • 900-2,700mg for a 250lb person

There is no assurance that these dosage ranges are optimal for human consumption

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References
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5.^Agrawal OP, Bharadwaj S, Mathur RAntifertility effects of fruits of Juniperus communisPlanta Med.(1980)
7.^Carroll JF, Tabanca N, Kramer M, Elejalde NM, Wedge DE, Bernier UR, Coy M, Becnel JJ, Demirci B, Başer KH, Zhang J, Zhang SEssential oils of Cupressus funebris, Juniperus communis, and J. chinensis (Cupressaceae) as repellents against ticks (Acari: Ixodidae) and mosquitoes (Diptera: Culicidae) and as toxicants against mosquitoesJ Vector Ecol.(2011 Dec)
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16.^Ali AM, Mackeen MM, Intan-Safinar I, Hamid M, Lajis NH, el-Sharkawy SH, Murakoshi MAntitumour-promoting and antitumour activities of the crude extract from the leaves of Juniperus chinensisJ Ethnopharmacol.(1996 Sep)
18.^Chang CI, Chen WC, Shao YY, Yeh GR, Yang NS, Chiang W, Kuo YHA new labdane-type diterpene from the bark of Juniperus chinensis LinnNat Prod Res.(2008)
22.^Kwon HJ, Hong YK, Park C, Choi YH, Yun HJ, Lee EW, Kim BWWiddrol induces cell cycle arrest, associated with MCM down-regulation, in human colon adenocarcinoma cellsCancer Lett.(2010 Apr 1)
25.^Forsburg SLEukaryotic MCM proteins: beyond replication initiationMicrobiol Mol Biol Rev.(2004 Mar)