Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Curryleaf has none that clears that bar.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, the record shows each on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
20 pairings are live across the library today. Checked 20 July 2026.
No study gave these as a pair, so they are not in the card above. But the reason they belong together is settled biochemistry, not a guess, so it is worth knowing.
Curry leaf and turmeric are tempered together in hot fat across South Indian cooking, and both release their active fractions into oil rather than water. Supplement blends copy the pairing. The rationale is culinary and solubility-based, with no trial of the combination.
Piperine slows first-pass conjugation of a range of plant alkaloids and phenolics in the gut wall. Curry leaf carbazole alkaloids are lipophilic bases handled by the same enzyme systems, so the pairing is mechanistically reasonable. It has not been measured for these specific alkaloids, so read it as inference from a class effect.
Mahanimbine and the related carbazole alkaloids are fat soluble, as are the carotenoids that give the leaf its colour. Both need fat present in the same meal to be picked up efficiently. This is why the leaf is traditionally fried in ghee or oil rather than steeped.
Curry leaf is used as an iron-bearing green in Indian cooking, and the iron in leafy plant material is non-heme. Ascorbate reduces ferric to ferrous iron and holds it soluble at intestinal pH, which raises the fraction absorbed. Squeezing lime over a curry leaf dish is the same chemistry applied at the table.
Polyphenol-rich plant material binds non-heme iron in the gut lumen and lowers the fraction absorbed. Curry leaf carries a meaningful polyphenol load, so a concentrated leaf extract taken with an iron supplement pulls in the opposite direction to what the iron is for. Separating them by a couple of hours sidesteps the issue.
Fresh curry leaf carries provitamin A carotenoids that the intestinal enzyme BCO1 cleaves toward retinal and then retinol. Adding a leaf preparation to a carotenoid product simply adds to the same pool. Drying and long storage cut the carotenoid content substantially.
Both are fried into hot oil at the start of a dish and both contribute volatile terpenes. Supplement blends aimed at digestive comfort commonly carry the pair. The basis is culinary tradition rather than a measured interaction.
Curry leaf and gymnema appear together in traditional Indian formulas aimed at glucose handling and are stacked in commercial products on that basis. Neither the pairing nor the individual contribution of curry leaf has been separated out in controlled work. This is tradition, and it should be read that way.
Both are used in formulas aimed at post-meal glucose, and both have laboratory evidence of alpha-glucosidase inhibition. Stacking them means two inputs pushing the same way, which matters for anyone already using glucose-lowering medication. Flagging the direction is the useful part here, not promising a result.
Nothing specific on file for Curryleaf. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.