Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Bittersweet nightshade 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.
Steroidal glycoalkaloids of the solanine and solasonine type adsorb readily onto activated charcoal in the gut lumen. Anyone taking charcoal alongside a nightshade preparation will absorb less of the plant's alkaloid load, and less of anything else swallowed in the same window. This is an interference, not a pairing to design around.
Solanaceous glycoalkaloids bind 3-beta-hydroxy sterols and form insoluble complexes, which is the basis of their membrane-disrupting behaviour. Free plant sterols in the same meal can tie up part of the alkaloid fraction before it reaches the membrane. The effect is chemical rather than clinical and has not been quantified in people.
Solanine-type glycoalkaloids inhibit acetylcholinesterase and butyrylcholinesterase. Huperzine A is a deliberate cholinesterase inhibitor. Stacking the two pushes in the same direction on the same enzyme, which is a reason to keep them apart rather than combine them.
Dried bittersweet nightshade stem appears in older European herbal respiratory and skin infusions, usually alongside demulcent and sweetening herbs such as licorice. The pairing is formulation convention and palatability, not a demonstrated interaction. No controlled work supports a combined effect.
Nothing specific on file for Bittersweet nightshade. 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 1 we read for Bittersweet nightshade. The full linked list is below.
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.