Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Ligustrum 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.
Vitamin D drives calcium uptake across the gut, which is the rate-limiting step for anything intended to support bone mineral status. Ligustrum contributes only a traditional rationale here, with no human trial isolating it. The pairing is worth stating as an enabling relationship rather than as a demonstrated additive effect.
Ligustrum fruit carries iridoid glycosides and triterpenes, and green tea carries catechins. Both move the same laboratory antioxidant markers, which means combining them can look additive on an assay without any separate benefit at the level of how a person feels or functions. A marker is not an outcome, and this pairing is a marker-level observation.
Phenolic compounds form insoluble complexes with ferrous and ferric iron before absorption, which is settled nutrition chemistry and applies to polyphenol-rich fruit extracts as a class. Taking a Ligustrum preparation in the same sitting as an iron supplement is therefore expected to reduce iron uptake. Separating the two by a couple of hours removes the issue.
Nothing specific on file for Ligustrum. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.These are the studies our verdict leans on, chosen from the 4 we read for Ligustrum. The full linked list is below.
Read this carefully. These are 1,056 voluntary, unverified reactions reported to the FDA (openFDA). The number mostly reflects how popular Ligustrum is, not how risky it is. A report is not proof Ligustrum caused anything. It is a signal of what to watch for, nothing more.
Source: openFDA adverse-event reports. Voluntary reporting, not an incidence rate.
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.