Shigru (Moringa) in Ayurveda: Properties & Everyday Use

What it is

Shigru is the Ayurvedic name for Moringa oleifera Lam., a tree whose leaves are eaten as food in South Asia and Africa. The leaves are the part most studied in human trials, consumed as dried leaf powder in capsules or mixed into meals (PMC ancillary trial analysis). A 2025 meta-analysis describes moringa as traditionally used in African and Asian medicine for its nutritional and therapeutic properties, rich in polyphenols, vitamins, and minerals (Crisan et al., meta-analysis record).

Classical properties

• Taste (rasa): pungent (Katu), bitter (Tikta)
• Qualities (guna): light (Laghu), dry (Ruksha)
• Potency (virya): warming (Ushna)
• After digestion (vipaka): pungent (Katu)
• Doshas: traditionally said to settle Kapha and Vata; may increase Pitta

Traditional use

Moringa is first a food: leaves and drumstick pods are everyday vegetables in Indian cooking, and the plant has centuries of use in African and Asian traditional medicine for nutritional and therapeutic purposes, including the management of metabolic complaints (Crisan et al., meta-analysis record). These are traditional and nutritional uses, not clinical proof: the human trial evidence is assessed separately below.

What research has looked at

The overall picture: small trials, inconsistent results

The most comprehensive synthesis to date is a 2025 systematic review and meta-analysis of randomized controlled trials (minimum 2-week duration, adults) evaluating moringa supplementation on cardiometabolic outcomes, with GRADE certainty assessment. Across 9 RCTs (12 study arms; 341 participants on moringa, 308 controls), moringa showed no significant effects on most outcomes (anthropometrics, lipids, glycemic indices, blood pressure). A modest reduction in diastolic blood pressure appeared (p = 0.02) but was not robust in sensitivity analyses. Subgroup hints (lower doses, participants under 50, interventions of 12+ weeks) were offset by high heterogeneity, risk of bias, and methodological limitations. The authors rated the certainty of evidence very low for all outcomes and concluded current evidence does not support consistent cardiometabolic benefits (Crisan et al., meta-analysis record).

Blood sugar: mixed signals from individual trials

A peer-reviewed review tabulating the human clinical studies reports a patchwork (clinical-study overview, PMC):

• Prediabetes (Spain, n=34): dry leaf powder for 12 weeks improved fasting blood glucose and HbA1c versus placebo, without affecting microbiota or liver/kidney markers (Gomez-Martinez et al. 2021).
• Type 2 diabetes, therapy-naive (Thailand, n=32): leaf capsules for 4 weeks had no effect on blood glucose, though blood pressure improved non-significantly (Taweerutchana et al. 2017).
• Type 2 diabetes (Mali, n=35): leaf powder taken after eating reduced post-meal (postprandial) blood sugar (Sissoko et al. 2020).
• Type 2 diabetes (Italy, n=17): leaf powder added to a single meal improved post-meal blood glucose control (Leone et al. 2018).
• Healthy adults (Thailand, n=10): single doses improved baseline insulin levels but did not affect blood glucose (Anthanont et al. 2016).

A separate 12-week double-blind, placebo-controlled trial in prediabetes (n=31 moringa / 34 placebo) found no differences between groups in inflammatory markers, lipid profile, antioxidant capacity, or blood pressure change scores: a null result consistent with the meta-analysis (PMC ancillary analysis).

Weight and lipids: one positive combination trial

In overweight adults (India, n=70), a 16-week trial of a combined moringa extract (LI85008F) plus modest calorie restriction and physical activity reduced waist and hip circumferences and improved the LDL/HDL cholesterol ratio (clinical-study overview, PMC, citing Dixit et al. 2018). Because the lifestyle co-intervention was part of the protocol, the lipid and waist effects cannot be attributed to moringa alone.

What the evidence does not support (yet)

The meta-analysis conclusion is the honest headline: no consistent cardiometabolic benefit from moringa supplementation in adults, on very-low-certainty evidence. Moringa is not a diabetes treatment, a weight-loss drug, or a blood-pressure medication, and no trial supports using it in place of prescribed therapy.

Safety notes

In the short human trials conducted so far (up to 16 weeks), leaf powder was generally well tolerated, and one 12-week trial found no adverse changes in liver or kidney function markers (clinical-study overview, PMC; PMC ancillary analysis). Long-term safety has not been studied in humans. Because moringa can lower blood sugar in some trials, people taking diabetes medication should be cautious about additive effects and discuss use with their clinician. Avoid during pregnancy and breastfeeding: safety data are insufficient. People with chronic illness or on prescription medication should consult a clinician before using moringa as anything more than food.

FAQs

Does moringa lower blood sugar?

Results are mixed. One 12-week trial in prediabetes improved fasting glucose and HbA1c, and two small meal studies reduced post-meal blood sugar: but a 4-week trial in type 2 diabetes found no effect, and a 2025 meta-analysis of 9 RCTs found no consistent glycemic benefit (clinical-study overview, PMC; Crisan et al.). It is not a diabetes treatment.

Does moringa help with weight loss?

One 16-week trial in overweight adults found reduced waist and hip measurements, but moringa was combined with calorie restriction and exercise, so the effect cannot be credited to moringa alone (clinical-study overview, PMC). The 2025 meta-analysis found no significant effect on body-weight outcomes (Crisan et al.).

Does moringa lower blood pressure or cholesterol?

The meta-analysis found no significant effect on blood pressure or lipids across trials, rating the evidence very low certainty (Crisan et al.). Individual small trials reported non-significant or mixed signals: not a basis for treatment.

Is moringa safe?

Short-term leaf-powder use (up to 16 weeks in trials) appears well tolerated, with no adverse liver/kidney signals in one 12-week trial (PMC ancillary analysis). Long-term safety is unstudied. Avoid in pregnancy and breastfeeding, and use caution with diabetes medication because of possible additive blood-sugar effects.

How much moringa was used in studies?

Swastik does not suggest amounts. The right amount depends on the person, the preparation and the product, so check with a qualified Ayurvedic practitioner or your doctor before taking any herb.

Sources

• Crisan D et al. "Effect of Moringa oleifera Lam. Supplementation on Cardiometabolic Outcomes: A Meta-Analysis of Randomized Controlled Trials with GRADE Assessment" (2025) — 9 RCTs, very-low-certainty evidence, no consistent cardiometabolic benefit — ouci.dntb.gov.ua
• "A Review on the Antidiabetic Properties of Moringa oleifera Extracts" — overview table of human clinical studies (Anthanont 2016; Taweerutchana 2017; Dixit 2018; Leone 2018; Sissoko 2020; Gomez-Martinez 2021). PMC — PMC · PMC9310029
• Gomez-Martinez et al. "Effects of Moringa oleifera Lam. Supplementation on Inflammatory and Cardiometabolic Markers in Subjects with Prediabetes" — 12-week double-blind RCT, n=31/34. PMC — PMC · PMC9099674

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.