IngredientsBa Ji Tian (巴戟天) is the Traditional Chinese Medicine name for Morinda officinalis F.C. How, a plant belonging to the family Rubiaceae, widely used for medicinal purposes in China and other East Asian countries. The root is the medicinally used part, and the herb is also known in pharmacognostic contexts as Radix Morindae Officinalis. Common synonyms and aliases in the literature and in commerce include: Ba Ji, Bi Ji, Morinda Root, Morindae Radix, Racine du Morinda, and Radix Morindae Officinalis.
In 1958, botanist Hou Kuanzhao formally identified the species used in modern commerce as Morinda officinalis How, a new species in the Rubiaceae family — the species recognized in all editions of the Chinese Pharmacopoeia from 1963 onward. Historical texts described Ba Ji Tian from various regions with differing morphologies, suggesting that ancient "Ba Ji Tian" may have included several different species.
Morinda officinalis How (Rubiaceae) is a small vine that grows widely in tropical and subtropical regions. It mainly grows in tropical and subtropical regions, such as Guangdong, Hainan, Guangxi, and Fujian provinces of China. The name "Ba Ji Tian" (巴戟天) likely reflects its original wild habitat in the Ba region (巴郡, roughly modern Chongqing/Sichuan), though by the modern era the primary production shifted entirely to southern Guangdong. It is an authentic medicinal herb from Deqing, Guangdong, and is one of China's famous "Four Great Southern Medicinals."
Roots of Morinda officinalis and Morinda citrifolia have been interchangeably used in traditional Chinese medicine, though there is no experimental evidence to support this equivalence. There are 26 anthraquinones, 15 triterpenes, and 8 iridoid glycosides in the root extracts of M. officinalis, versus 30 anthraquinones, 1 triterpene, and 8 iridoid glycosides in M. citrifolia roots. Among these, 25 compounds are present in both plants — but principal component analysis shows that the two herbs can be separated clearly by chemical profiling. Some commercial ba ji tian products may also contain the related plant Morinda citrifolia.
Ba Ji Tian was first recorded in the Shen Nong Ben Cao Jing (Divine Farmer's Classic of Materia Medica), where it was classified as a superior-grade (上品) herb — indicating it was considered safe for long-term use and broadly nourishing. Its early reputation centered on two main actions: treating severe wind conditions and strengthening the Kidneys for impotence. Its roots have been widely used for the treatment of sexual impotence, spermatorrhea, irregular menstruation, and female infertility for more than 2,000 years.
Listed as a top-grade herb in the Shen Nong Ben Cao Jing, it is sometimes called "the Southern Ginseng" in its native Guangdong province.
Ancient texts like the Mingyi Bielu noted its benefits for headaches, abdominal pain, and boosting essence, while the Yaoxing Lun emphasized its role in treating male sexual dysfunction and general weakness. In the Ming Dynasty, Li Shizhen's Compendium of Materia Medica described Ba Ji Tian as a moist, warming herb ideal for nourishing kidney yang, enhancing sexual function, and strengthening the musculoskeletal system.
The Qing dynasty physician Fu Qingzhu made particularly notable use of Ba Ji Tian in his gynecological work Fu Qingzhu Nu Ke. Out of 77 conditions discussed in that text, 11 feature Ba Ji Tian, primarily for warming Kidney Yang in menstrual disorders, uterine cold, and infertility. Liu Wansu's famous Di Huang Yin Zi (Rehmannia Drink) also includes Ba Ji Tian, using it to treat wind conditions by warming and tonifying the Kidney, demonstrating its dual role as both a tonic and wind-dispersing agent.
In the framework of Traditional Chinese Medicine, Ba Ji Tian is used to dispel wind-damp, tonify the kidney yang, and strengthen tendons and bones. Ba Ji Tian is characterized as acrid, sweet, and only slightly warming, with a soft, moistening quality that tonifies Yang without being overly dry or cloying. In TCM theory, Ba Ji Tian targets the kidneys and liver. The kidneys govern the flow of liquids in and out of the body, which is why Ba Ji Tian is considered especially suitable for symptoms such as frequent urination, womb sterility, irregular menstruation, impotence, seminal emission, and low libido.
Ba Ji Tian is also traditionally used to strengthen the lower body, helping to treat chronic arthralgia, weak tendons and bones, flaccidity of bones, soreness and limpness in the lumbar and knees, muscle cramps, spasms, pain, and discomfort.
Traditionally, Ba Ji Tian is employed in decoction form as a cut or sliced dried root, and is also used in wine preparations and powders. Salt-prepared Morinda (Yan Ba Ji) is considered better able to enter the Kidney channel, augment primal Yang, and replenish Yin water. Processed Morindae officinalis Radix (PMOR) is obtained by steaming the raw root (MOR). Traditionally, the clinical effects are considered discrepant between processed and non-processed forms, with the effect of invigorating kidneys and tonifying yang considered stronger in PMOR than MOR.
In clinical practice, Ba Ji Tian is often included in formulas such as You Gui Wan and Jin Gui Shen Qi Wan, both famous for restoring Yang energy in cases of depletion. It is a key component in classic formulas where it synergizes with herbs such as Yin Yang Huo (Epimedium) and Dang Gui (Angelica sinensis) to nurture kidney yang and support vitality.
More than 100 chemical compounds have been isolated from this plant, and the major constituents have been found to be polysaccharides, oligosaccharides, anthraquinones, and iridoid glycosides. The main components of M. officinalis include oligosaccharides, anthraquinones, iridoid glycosides, organic acids, trace elements, amino acids, and sterols.
The main active components of Morinda officinalis include sugars, anthraquinones, and iridoids. Among these, sugars — including monosaccharides, polysaccharides, and oligosaccharides — are considered the primary bioactive constituents.
Phytochemistry studies have revealed that Morinda officinalis comprises variable chemical constituents, mainly including iridoid glycosides, anthraquinones, polysaccharides, oligosaccharides, organic acids, and volatile oils. The Morinda officinalis oligosaccharides (MOOs) are the inulin-type fructooligosaccharides extracted from Morinda officinalis, with 3–9 degrees of polymerization (DPs).
MOO is a mixture of oligosaccharides ranging from trisaccharides to nonasaccharides and mainly consisting of seven oligosaccharides, and has shown pharmacological activities related to anti-depressant, anti-dementia, and memory-enhancing effects. Five compounds with antidepressant activities have been isolated from the roots of Morinda officinalis: succinic acid, nystose, 1F-fructofuranosylnystose, an inulin-type hexasaccharide, and an inulin-type heptasaccharide.
In M. officinalis root extracts, 26 anthraquinones have been identified, alongside 15 triterpenes and 8 iridoid glycosides. Key anthraquinones include rubiadin, rubiadin-1-methyl ether, 1,3,8-trihydroxy-2-methoxy-anthraquinone, 2-hydroxy-1-methoxy-anthraquinone, morindin, 2-methylanthraquinone, and methyl isoalizarin. Monotropein and rubiadin-1-methyl ether are described in some studies as major bioactive components in M. officinalis.
The iridoids in M. officinalis have antioxidant, anti-chromosomal mutagenesis, antitumor, anti-inflammatory, and analgesic functions. The root of M. officinalis was reported to contain monotropein, which exhibits anti-inflammatory and antinociceptive activities. Monotropein isolated from the root of M. officinalis can lengthen the action time, decrease stretching episodes, reduce writhing in antinociceptive assays, and significantly decrease acute paw edema at dosages of 20 and 30 mg/kg (animal studies).
Morinda officinalis How polysaccharides (MOPs) are one of the key bioactive components, and have a variety of biological activities, such as antioxidation, antifatigue, enhanced immunity, and antiosteoporosis effects. Pharmacokinetic studies have demonstrated that the main components of M. officinalis including monotropein and deacetyl asperulosidic acid are distributed in various organs and tissues.
MOO is poorly absorbed systemically, so its anti-depressant mechanism operates primarily through the gut microbiota. Oral MOO acts on the tryptophan → 5-hydroxytryptophan (5-HTP) → serotonin (5-HT) metabolic pathway in the gut microbiota: MOO can increase tryptophan hydroxylase levels in gut microbiota, accelerating 5-HTP production from tryptophan; simultaneously, MOO inhibits 5-hydroxytryptophan decarboxylase activity, reducing 5-HT generation locally and accumulating 5-HTP. The raised 5-HTP is then absorbed into the bloodstream and passes across the blood–brain barrier to improve 5-HT (serotonin) levels in the brain. Pentasaccharide, one of the main components in MOO, exerts a significant antidepressant effect through a mechanism identical to that of the full oligosaccharide mixture.
Anthraquinone compounds from M. officinalis decrease the formation of bone resorption pits, reduce the number of multinucleated osteoclasts, and inhibit tartrate-resistant acid phosphatase (TRAP) and cathepsin K activity. They also enhance osteoclast apoptosis, improve the OPG/RANKL expression ratio in osteoblasts, interfere with the JNK and NF-κB signaling pathways, and reduce the expression of calcitonin receptor (CTR) and carbonic anhydrase II (CA II) in osteoclasts.
A specific anthraquinone compound from M. officinalis, designated M13, has been found to significantly promote osteogenic differentiation of mesenchymal stem cells (MSCs) via stimulation of the Wnt/β-catenin pathway in vitro and ex vivo. Research using metabolomics profiling showed that M. officinalis extracts prevented bone loss mainly by interfering with arachidonic acid metabolism.
Methanol extraction of M. officinalis root has been found to possess antinociceptive and anti-inflammatory effects in vitro and in vivo by restraining inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX) activity.
Water-soluble polysaccharides extracted from M. officinalis (MOPs) were evaluated in experimental varicocele rat models. Intragastric administration of MOPs at doses ranging from 50–100 mg/kg facilitated improvements in sperm parameters and seminiferous epithelial structures, modulated serum hormone profiles, and stimulated GnRH synthesis and release in the hypothalamus.
In recent years, oligosaccharide constituents of Morinda officinalis — including bajijiasu, fructooligosaccharides, and inulin-type oligosaccharides — have received increasing scientific interest. MOS exerts various pharmacological effects by modulating gut microbiota, enhancing immune function, and mitigating oxidative stress.
Regulatory status: MOO has been approved as a prescription drug for depression in China since 2012 (NMPA approval number: Z20120013), making it a clinical traditional Chinese medicine for the treatment of depression in that country.
Clinical evidence — systematic review and meta-analysis: A systematic review and meta-analysis evaluated the efficacy and safety of Morinda officinalis oligosaccharide (MOO) capsules for depressive disorder. Eight electronic databases were searched for relevant studies from inception to April 19, 2020. Randomized controlled trials comparing MOO capsules with conventional antidepressants were included. The risk of bias was assessed using the Cochrane Risk of Bias Tool, and quality was evaluated using GRADE methodology. Seven studies involving 1,384 participants were included.
The effect of MOO capsules for moderate depressive disorder was not significantly different from that of antidepressants (risk ratio [RR] = 0.99, 95% CI 0.92–1.06). The systematic review concluded that the efficacy of MOO capsules in the treatment of mild to moderate depression is not inferior to that of conventional antidepressants, potentially providing a new direction for clinical antidepressant selection. However, the authors noted that more high-quality research and detailed assessments are still needed.
Regarding adverse events, no significant difference was found between MOO capsules and antidepressants (RR = 0.84, 95% CI 0.65–1.07).
Recent clinical trial (2025): A randomized, double-blind, placebo-controlled trial conducted at Beijing Anding Hospital evaluated the clinical efficacy and safety of Morinda officinalis oligosaccharides (MOO) combined with probiotics versus MOO plus placebo in 108 patients meeting DSM-5 criteria for major depressive disorder (MDD) with gastrointestinal symptoms. The trial lasted 8 weeks, and the primary outcome was the change in HAMD-17 (Hamilton Rating Scale for Depression) scores from baseline to Week 8. Both intention-to-treat and per-protocol analyses were conducted.
Preclinical mechanistic evidence: A series of clinical trials have been conducted to further reveal the effects of MOO on depressive disorder. However, most published studies vary in research quality; some have limited sample sizes, and some recruited patients with primary depressive disorder, while others involved patients with depressive disorder secondary to somatic diseases. Consequently, the overall efficacy and safety of MOO capsules remain areas warranting further investigation.
Evidence strength: The clinical evidence for the antidepressant effects of MOO capsules is among the strongest for any application of this herb, supported by multiple RCTs and a published meta-analysis. However, all clinical trials have been conducted in China, most compare MOO against active antidepressants (non-inferiority design rather than placebo-controlled), and some studies have limited sample sizes. Higher-quality, independently conducted, placebo-controlled trials are still lacking.
Preclinical evidence: The root of Morinda officinalis has been found to have a protective effect against bone loss in sciatic neurectomized and ovariectomized osteoporotic rats, with this protective effect attributed to anthraquinone compounds in the plant. Morinda officinalis has long been used as a tonic for nourishing the kidney and strengthening bone in TCM. A variety of chemical constituents such as polysaccharides, flavone glycosides, iridoid glycosides, and anthraquinones have been studied in this context. Ample evidence shows that M. officinalis and its chemical constituents can prevent osteoporosis induced by estrogen-deficiency and ageing in animal models.
Morinda officinalis polysaccharide has been found to regulate rat bone mesenchymal stem cell osteogenic-adipogenic differentiation in osteoporosis by upregulating miR-21 and activating the PI3K/AKT pathway.
Evidence strength: The evidence for anti-osteoporotic effects is predominantly in vitro and preclinical (animal models). No rigorous, peer-reviewed human clinical trials specifically evaluating bone mineral density or fracture outcomes attributable to Ba Ji Tian have been identified in the literature at this time. Current evidence is insufficient to establish efficacy in humans for this indication.
Preclinical evidence: In an experimental left varicocele (ELV) rat model, water-soluble polysaccharides extracted from M. officinalis were evaluated. Administration of MOPs at 50–100 mg/kg facilitated improvements in sperm parameters and seminiferous epithelial structures, modulated serum hormone profiles, and stimulated GnRH synthesis and release in the hypothalamus.
Results showed that MOP can repair the impaired male reproductive system caused by varicocele in the rat model. However, additional experiments are warranted to understand the mechanism underlying the effects of MOP in the regulation of the male reproductive system.
A study has indicated that MOS possess multiple regulatory activities across the nervous, immune, and reproductive systems, including antidepressant, pro-angiogenic, bone metabolism-modulating, and fertility-enhancing effects.
Evidence strength: Evidence for reproductive-enhancing effects is derived exclusively from animal models. No peer-reviewed human clinical trials have been identified. Current evidence does not permit conclusions about efficacy in human fertility.
The main components of M. officinalis include oligosaccharides, anthraquinones, iridoid glycosides, organic acids, trace elements, amino acids, and sterols. Previous studies have suggested that oligosaccharides in M. officinalis can improve immunity, promote angiogenesis, and enhance reproduction. In vitro and in vivo experiments have suggested that MO contains various effective pharmaceutical components conferring anti-inflammatory and antioxidant properties. Neuroinflammation and oxidative stress are undoubtedly hallmarks of neurodegeneration, contributing to Alzheimer's disease (AD) progression.
Pharmacological studies have indicated that the oligosaccharide components of Morinda officinalis possess significant pharmacological activities, such as antidepressant, anti-Alzheimer's, and anti-osteoporosis effects, highlighting their potential for further development and utilization.
Evidence strength: Evidence for cognitive and neuroprotective benefits is currently limited to in vitro and animal studies, with no peer-reviewed human clinical trials identified. This remains a preclinical research area.
Crude extracts and pure compounds of this plant are used as effective agents in research on anti-inflammatory, anti-fatigue, anti-aging, cardiovascular-protective, antioxidant, immune-regulatory, and anti-inflammatory activities. M. officinalis has exhibited a wide spectrum of biological activities in laboratory and animal research: anti-inflammatory, antioxidant, antidepressant, anti-fatigue, anti-aging, renoprotective, fertility improvement, cardiovascular protection, hypoglycemic and hyperglycemic effects, antiosteoporosis, antinociceptive, antimutagenic, antimicrobial, antihepatotoxic, and anti-HIV activities.
Evidence strength: All evidence for anti-inflammatory and analgesic effects is from preclinical (in vitro or animal) studies only. No human clinical trial data for these applications was identified.
Morinda officinalis How polysaccharides (MOPs) have biological activities including antioxidation, antifatigue, and enhanced immunity in preclinical models. Modern research has reported that MOR (Morindae officinalis Radix) has effects including enhancing immunity, providing antistress and cardiovascular protection, and regulating gut microbiota.
Evidence strength: Preclinical only; no human evidence was identified for these specific endpoints.
Morinda officinalis is utilized extensively in both clinical therapeutics and functional food industries. Traditionally, the raw dried root (bark minus the woody core) is prepared as a water decoction. Processed Morindae officinalis Radix (PMOR) is obtained by steaming MOR. Salt-processing is another recognized method; salt-prepared Morinda (Yan Ba Ji) is traditionally considered better able to enter the Kidney channel and augment primal Yang.
Modern commercial forms include dried cut root for decoction, concentrated extract granules for reconstitution in hot water, standardized capsules (particularly oligosaccharide-standardized capsules approved in China for depression), and inclusion as an ingredient in multi-herb patent formula pills.
Ba Ji Tian is associated with the reproductive, urinary, and musculoskeletal systems. Based on the peer-reviewed scientific literature, the following systems and health areas are represented:
Investigation of acute toxicity and genotoxicity has indicated that M. officinalis is nontoxic at normal doses. There have been no reports of significant adverse effects at normal doses in clinical application, but M. officinalis at doses of more than 1,000 mg/kg may cause adverse effects (data from preclinical studies).
In the meta-analysis of RCTs comparing MOO capsules with conventional antidepressants, no significant difference was found in adverse events between the two groups (RR = 0.84, 95% CI 0.65–1.07). In a recent randomized controlled trial, adverse events included one patient developing severe diarrhea due to intolerance (which resolved after discontinuing probiotics) and two patients experiencing severe constipation in the MOO plus probiotics group. In the control group, one patient had an allergic reaction to morinda officinalis oligosaccharide capsules (which improved after discontinuing the medication and receiving symptomatic anti-allergy treatment).
In TCM practice, Ba Ji Tian is contraindicated in conditions characterized by Yin deficiency with internal heat signs (e.g., red tongue, irritability, night sweats), and is considered not suitable for fever, infection, or acute inflammation.
Based on reported pharmacological mechanisms, a potential exists for interaction with sympathomimetic agents, monoamine oxidase (MAO) inhibitors, or tricyclic antidepressants, given the herb's reported activity on norepinephrine, dopamine, and serotonin pathways. This concern is theoretical and based on preclinical mechanistic evidence rather than documented clinical pharmacokinetic interaction studies.
Traditional Chinese herbs are composed of many ingredients, which may result in different degrees of hepatotoxicity and renal toxicity when used clinically. Identifying the most effective individual ingredient in M. officinalis has been noted as important to both promote fertility benefits and avoid potential toxicity.
Modern research has reported that MOR has the effects of enhancing immunity, providing antistress and cardiovascular protection, and regulating gut microbiota. Among the documented chemical differences between raw and processed forms, the contents of 29 components — including fructooligosaccharides, monotropein, deacetylasperulosidic acid, geniposide, and anthraquinone glycosides — were found to be higher in the raw root than in the steamed (processed) form.
Some commercial ba ji tian products may contain the related plant Morinda citrifolia (noni), which has a different phytochemical profile. Chemical fingerprinting demonstrates that the two species can be clearly separated, underscoring the importance of botanical authentication in quality control.
Health conditions that Ba ji tian may help support.
Ba ji tian (Morinda officinalis) is a fundamental Kidney-Yang tonic in traditional Chinese medicine used for over 2,000 years to treat impotence, low libido, and male sexual weakness. Animal studies confirm androgenic effects and improved sexual behavior. Listed in the Chinese Pharmacopoeia for male sexual and reproductive health.
Body systems that Ba ji tian may help support.
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