How does Solanum torvum work for diabetes?

Solanum torvum exerts antidiabetic effects primarily through its steroidal alkaloids and flavonoids. Research suggests these compounds may inhibit carbohydrate-digesting enzymes like alpha-amylase and alpha-glucosidase, which slows glucose absorption in the intestines. Additionally, animal studies indicate potential improvements in insulin sensitivity and pancreatic beta-cell protection. However, current evidence is limited to preclinical studies (Level C), and human clinical trials are needed to confirm these mechanisms definitively.

Does Solanum torvum interact with diabetes medications?

Yes, there is a potential interaction. Because Solanum torvum demonstrates blood glucose-lowering properties in animal studies (Level C evidence), taking it alongside conventional antidiabetic drugs like metformin or insulin could theoretically cause additive effects. This combination may increase the risk of hypoglycemia (low blood sugar). Patients managing diabetes with medication should consult a healthcare provider before adding this herb to their regimen to ensure proper monitoring of blood glucose levels.

What is the recommended dosage for Solanum torvum?

The typical adult dosage for Solanum torvum is 2 to 4 grams of the dried fruit daily. This is commonly prepared as a tea or incorporated fresh into culinary dishes. In Thai folk medicine, the fresh fruit is often cooked in curries. Due to the presence of solanine, it is important to adhere to recommended amounts and avoid excessive consumption, as higher doses may lead to gastrointestinal irritation.

Is Solanum torvum safe during pregnancy?

No, Solanum torvum is considered unsafe during pregnancy. The herb contains steroidal alkaloids, specifically solanine, which have been associated with potential teratogenic effects and uterine stimulation. Traditional use and safety classifications contraindicate its use for pregnant women. Additionally, those with a known sensitivity to solanine or other plants in the Solanaceae family (such as tomatoes or eggplants) should avoid this herb to prevent adverse reactions.

Can Solanum torvum help treat anemia?

In Caribbean folk medicine, Solanum torvum is traditionally used as a hematonic to treat anemia. While this use is rooted in traditional practice, scientific validation is currently limited to preclinical research (Level C). Some animal studies suggest potential benefits on blood parameters, but robust human clinical trials are lacking. Therefore, it should not replace standard medical treatments for anemia, such as iron supplementation, without professional medical guidance.

Solanum Torvum Herb (Solanum torvum)

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Solanum torvum, also known as turkey berry or pea eggplant, is a medicinal plant used globally for treating conditions such as diabetes and hypertension [PMID:36386935, PMID:19683046].

Background

Solanum torvum Swartz is a member of the Solanaceae family and a wild relative of the eggplant [PMID:36386935, PMID:38542951]. It is widely distributed worldwide and is frequently used as a rootstock for grafting due to its high resistance to soil-borne diseases, including root-knot nematodes and bacterial/fungal wilts [PMID:38671394, PMID:23937585, PMID:34337422].

Traditional uses

In traditional medicine systems, including those in Malaysia and Cameroon, it is used to treat diabetes, hypertension, tooth decay, and reproductive problems [PMID:36386935, PMID:19683046]. In traditional Chinese medicine, it is believed to have sedative and anti-inflammatory effects, and in the Philippines, a water decoction is used for hyperactivity disorder [PMID:38542951]. It is also used to clear heat toxins, promote blood circulation, and alleviate blood stasis for the treatment of common cold, chronic gastritis, and tumors [PMID:39117020].

Active compounds

The plant contains steroidal saponins (including torvosides U-Z), sesquiterpenes, polyphenols, flavonoids, esters of hydroxycinnamic acid, chlorogenic acid isomers, and solasodine [PMID:38542951, PMID:26824767, PMID:36518265, PMID:35105269, PMID:37314657]. It also contains minerals such as Fe, Zn, Cu, Mn, Ca, Mg, Na, and K [PMID:35340440].

Mechanism of action

Solanum torvum may induce ferroptosis by reducing glutathione peroxidase 4 (GPX4) expression to suppress hepatocellular carcinoma [PMID:39117020]. It has demonstrated the ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) [PMID:37811479]. Additionally, it may inhibit the TRPV1 receptor, IL-6, and TNF-α to reduce neuropathic pain [PMID:37314657].

Clinical evidence

Evidence DHepatocellular Carcinoma

Ethanol extract inhibited the growth of various hepatoma cell lines by inducing ferroptosis [PMID:39117020]

Evidence DHypertension

Ethanolic extract reduced systolic blood pressure and reversed metabolic alterations in fructose-induced hypertensive rats [PMID:19683046]

Evidence DDiabetes

Fruit extract showed hypoglycemic, antilipidemic, and hepatoprotective activities in streptozotocin-induced diabetic rats [PMID:36386935]

Evidence DNeuropathic Pain

Ethanolic fruit extract and solasodine significantly reduced behavioral and biochemical changes in a rat model of chronic constriction injury [PMID:37314657]

Evidence DNephrotoxicity

Decreased levels of creatinine and BUN and increased antioxidant defense enzymes in doxorubicin-induced nephrotoxic rats [PMID:19883716]

Evidence DLiver Injury

Safety & adverse effects

Ingestion of berries (susumber berries) can cause acute toxicity mimicking a stroke, characterized by dysarthria (94%), unstable gait (94%), blurry vision (59%), nystagmus/gaze deviation (47%), and autonomic symptoms (29%) [PMID:36282075, PMID:26577583]. In ruminants, it is associated with enzootic calcinosis, a chronic disease involving soft tissue calcification and hypercalcemia [PMID:32798504].

Evidence summary

The majority of evidence is derived from in vitro studies and animal models (Level D), with one pilot clinical trial (Level B) regarding nutritional fortification. Safety data is based on case reports of acute poisoning.

PubMed sources

1.PMID: 32798504 (2020) — Enzootic calcinosis in ruminants: A review. · Toxicon : official journal of the International Society on Toxinology
2.PMID: 36386935 (2022) — Antidiabetic activity of Solanum torvum fruit extract in streptozotocin-induced diabetic rats. · Frontiers in nutrition
3.PMID: 38671394 (2024) — Solanum aculeatissimum and Solanum torvum chloroplast genome sequences: a comparative analysis with other Solanum chloroplast genomes. · BMC genomics
4.PMID: 36518265 (2022) — Pea eggplant (Solanum torvum Swartz) is a source of plant food polyphenols with SARS-CoV inhibiting potential. · PeerJ
5.PMID: 39117020 (2024) — Solanum torvum induces ferroptosis to suppress hepatocellular carcinoma.

Solanum Torvum Herb

Sources & Citations