Description

What is it

Naval — Jamun in Hindi, Syzygium cumini to botanists — is the great purple-fruited tree of the Indian summer, so woven into the land that ancient India called itself Jambudvipa, “the land of the Jambu tree.” Within its fruit sits a single large seed that Siddha and Ayurveda have prized for centuries, dried and ground into a traditional astringent, metabolic-wellness powder. We take that seed, cleaned and milled fine, and present it single-ingredient in a vegetarian capsule — the heart of the naaval, without the work of drying and grinding it yourself.

What Makes This Different

• Pure seed, single ingredient. Whole jamun seed (kernel) powder — no fillers, binders, flow agents or extract dilution.
• Seed, not leaf or fruit. The jamun’s seed is its own distinct tradition, and it’s the part richest in the plant’s polyphenols; we use the seed, and say so.
• The astringent seed, made effortless. Raw jamun seed is hard, tannic and bitter to prepare; the capsule delivers it clean and ready.
• Certified base: FSSAI Central Licensed, GMP compliant, ISO 22000.

What It Does

• The seed at the heart of a storied tree. For centuries Siddha and Ayurveda have dried and powdered the naaval seed as a traditional astringent and wellness preparation.
• Exceptionally antioxidant-rich. Of all the fruit’s parts, the seed carries the highest polyphenol and ellagic-acid content, and laboratory assays record very high antioxidant activity (ORAC, DPPH, superoxide scavenging) (in vitro).
• A traditional astringent for digestive comfort. The seed’s natural tannins have long made it a folk choice for digestive comfort and everyday gut balance.
• Traditionally valued for metabolic wellness. In Ayurveda and Siddha, the naaval seed has long held a place in traditional approaches to everyday metabolic balance.
• Emerging angle — ellagic acid and ellagitannins. The seed’s signature polyphenols, ellagic acid and its ellagitannins, are an active area of antioxidant research (in vitro).

How to Take It

Take one veg capsule twice daily with water, with or after food, as part of your daily routine. Best enjoyed steadily as part of a balanced diet rather than as a short course. If you are pregnant or breastfeeding, giving it to a child, or taking prescription medication, consult a healthcare professional before starting any new supplement.

Disclaimer

Yogis Herbs Naval Seed Capsules are a herbal food supplement, not a medicine, and are not intended to diagnose, treat, cure or prevent any disease. Those who are pregnant or breastfeeding, children, and anyone on medication should consult a healthcare professional before use. These statements have not been evaluated by the Food and Drug Administration. Individual results vary; enjoy as part of a balanced diet and healthy lifestyle.

References

1. Antioxidant and antiproliferative activities of anthocyanin/ellagitannin-enriched extracts from Syzygium cumini L. (‘jamun’) (2012). PMC3351850. In vitro (seed & pulp). Jamun seed contained higher ellagic acid/ellagitannins (approx. 0.5%) and total polyphenolics (approx. 2.7%) than the pulp, with high ORAC antioxidant capacity (approx. 3,379 micro-M TE/g). https://pmc.ncbi.nlm.nih.gov/articles/PMC3351850/
2. Chemical composition and in vitro antioxidant studies on Syzygium cumini fruit (2010). PubMed 20836162. In vitro (kernel & seed coat). Kernel and seed coat contained far higher total phenolics (approx. 9.0 and 8.1 g/kg) than pulp; kernel superoxide-scavenging activity was about six times that of Trolox. https://pubmed.ncbi.nlm.nih.gov/20836162/
3. Evaluation of Antioxidant, Xanthine Oxidase-Inhibitory and Antibacterial Activity of Syzygium cumini Seed Extracts (2025). Plants (MDPI), 14(3):316. In vitro (seed). The methanolic seed extract showed high flavonoid (approx. 128 micro-g QE/mg) and polyphenol (approx. 154 micro-g GAE/mg) content. https://www.mdpi.com/2223-7747/14/3/316
4. Jamun (Syzygium cumini) seed bioactives and its biological activities: A review (2022). ScienceDirect. Review (seed). Documents the seed’s phenolics and glycosides — ellagic acid, ellagitannins, corilagin, jamboline, jambosine and quercetin. https://www.sciencedirect.com/science/article/abs/pii/S2212429222005697