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Pterocarpus marsupium (Indian Kino Tree)

Vijaysar

Research reviewed: Up until 03/2026

Vijaysar (Pterocarpus marsupium (Indian Kino Tree)) is a dietary supplement with 8 published peer-reviewed studies involving 314 participants, researched for Blood Sugar & Diabetes, Lipid & Metabolic Health.

8
Studies
314
Participants
1998–2022
Research Span

Evidence at a Glance

Strength is scored by study design, sample size, study type, and outcomes

Overall: Moderate Evidence

Blood Sugar & Diabetes

Weak
3 studies 0 of 3 positive 272 participants 2 human

Lipid & Metabolic Health

Moderate
5 studies 2 of 5 positive 42 participants 1 human

Research Visualised

Visual breakdown of the clinical data.

Study Quality Breakdown

What types of studies were conducted

0/8
Randomised
1/8
Double-Blind
0/8
Placebo-Controlled

Participants Per Study

Larger samples = more reliable results

Study 1 (1998)
97
Study 2 (2005)
175
Study 3 (2004)
0
Study 4 (2005)
0
Study 5 (2022)
2
Study 6 (2019)
0
Study 7 (2008)
0
Study 8 (2016)
40

Research Timeline

When the studies were published

1
1998
1
2004
2
2005
1
2008
1
2016
1
2019
1
2022

All Studies

Detailed breakdown of each trial. Click to expand.

Blood Sugar & Diabetes

1

Vijayasar in newly-diagnosed non-insulin-dependent diabetes mellitus

1998 97 participants 12 weeks 2-4g bark powder/day (flexible dose)
Human Study Positive

Study Type

Flexible dose open trial (ICMR multicenter)

Purpose

Vijayasar in newly-diagnosed non-insulin-dependent diabetes mellitus

Dose

2-4g bark powder/day (flexible dose)

Participants

97 NIDDM patients

Duration

12 weeks

Results

Significant control of both fasting and postprandial blood glucose by 12 weeks. Good tolerability with no significant adverse effects reported.

How They Measured It

FBS, PPBS, HbA1c

Read full study
2

Efficacy of Vijayasar vs metformin in newly diagnosed type 2 DM

2005 175 participants 12 weeks 2-4g bark powder vs metformin 500mg flexible dose
Human Study Double-Blind Mixed

Study Type

Flexible-dose double-blind multicenter RCT

Purpose

Efficacy of Vijayasar vs metformin in newly diagnosed type 2 DM

Dose

2-4g bark powder vs metformin 500mg flexible dose

Participants

175 type 2 DM patients

Duration

12 weeks

Results

Comparable reductions in FBS, PPBS, HbA1c to metformin. Lipid improvements notably superior in Vijayasar group. Well-tolerated with minimal adverse effects.

How They Measured It

FBS, PPBS, HbA1c, lipid profile

Read full study
3

P. marsupium on prevention of diabetes-induced cataract

2004 ? participants Until cataract development 1g/kg bark extract/day
Review/Other Positive

Study Type

Anti-cataract study

Purpose

P. marsupium on prevention of diabetes-induced cataract

Dose

1g/kg bark extract/day

Participants

Alloxan-induced diabetic rats

Duration

Until cataract development

Results

Significantly delayed cataract formation. Reduced oxidative stress and polyol pathway activity in lens. Anti-cataract benefit secondary to antioxidant effects.

How They Measured It

Lens turbidity assessment, oxidative stress in lens

Read full study

Lipid & Metabolic Health

4

P. marsupium effects on fructose diet-induced metabolic patterns

2005 ? participants 8 weeks Aqueous bark extract 1g/kg
Review/Other Mixed

Study Type

Metabolic pharmacological study

Purpose

P. marsupium effects on fructose diet-induced metabolic patterns

Dose

Aqueous bark extract 1g/kg

Participants

Animal dietary metabolic model

Duration

8 weeks

Results

Prevented fructose-diet-induced insulin resistance, dyslipidemia, and hepatic metabolic disruption. Glucose transporter upregulation and PPAR-gamma activation identified.

How They Measured It

Blood glucose, insulin resistance, lipid profiles, liver function

Read full study
5

Antioxidant effects and glucose uptake enhancement in HepG2 cells

2022 2 participants N/A Various MPME concentrations
Review/Other Positive

Study Type

Antioxidant and glucose uptake study

Purpose

Antioxidant effects and glucose uptake enhancement in HepG2 cells

Dose

Various MPME concentrations

Participants

HepG2 cell culture study

Duration

N/A

Results

Potent antioxidant activity and significantly enhanced glucose uptake in hepatocytes. AMPK and PPAR-alpha pathways implicated in antidiabetic mechanism.

How They Measured It

DPPH, FRAP, glucose uptake assay in HepG2 cells

Read full study
6

Pharmacological and phytochemical evidence for P. marsupium

2019 ? participants Various Various
Review/Other Mixed

Study Type

Phytochemical review

Purpose

Pharmacological and phytochemical evidence for P. marsupium

Dose

Various

Participants

Review

Duration

Various

Results

Contains pterostilbene, epicatechin, marsupin, homopinocembrin with antidiabetic, antihyperlipidaemic, antioxidant, and anti-inflammatory activities.

How They Measured It

Systematic literature review

Read full study
7

Beta-cell regenerative effects of P. marsupium extract

2008 ? participants 4 weeks 100-200mg/kg extract
Review/Other Mixed

Study Type

Beta-cell regeneration study

Purpose

Beta-cell regenerative effects of P. marsupium extract

Dose

100-200mg/kg extract

Participants

STZ-induced diabetic rats

Duration

4 weeks

Results

Partially restored pancreatic beta-cell architecture and insulin staining. Suggests regenerative rather than purely hypoglycaemic mechanism.

How They Measured It

Pancreatic histology, insulin immunostaining, blood glucose

Read full study
8

Vijaysar tumbler water for blood sugar in type 2 diabetics

2016 40 participants 90 days 200ml water soaked in 25g Vijaysar tumbler overnight
Human Study Positive

Study Type

Clinical Ayurvedic trial

Purpose

Vijaysar tumbler water for blood sugar in type 2 diabetics

Dose

200ml water soaked in 25g Vijaysar tumbler overnight

Participants

40 type 2 diabetic patients

Duration

90 days

Results

Vijaysar tumbler water significantly reduced FBS and PPBS. Traditional preparation method validated as effective delivery for bioactive compounds.

How They Measured It

FBS, PPBS, HbA1c

Read full study

Frequently Asked Questions

Common questions about Vijaysar research

What does the research say about Vijaysar?

There are currently 8 peer-reviewed studies on Vijaysar (Pterocarpus marsupium (Indian Kino Tree)), involving 314 total participants. Research covers Blood sugar & type 2 diabetes, Cholesterol & lipid management, Antioxidant and 1 more areas. The overall evidence strength is rated as Moderate.

How strong is the evidence for Vijaysar?

The evidence is currently rated as "Moderate Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (3 human studies), and reported outcomes.

What health goals has Vijaysar been studied for?

Vijaysar has been researched for: Blood sugar & type 2 diabetes, Cholesterol & lipid management, Antioxidant, Weight management. Each area has its own body of evidence which you can explore in the study breakdowns above.

Are the studies on Vijaysar based on human trials?

Yes, 3 out of 8 studies are human trials. Human trials carry more weight in our evidence scoring system.