Glucokinin

Hormone

What is it

Glucokinin is a historical term for plant-derived compounds (notably from goat's rue, Galega officinalis) claimed to have insulin-like blood-glucose-lowering effects. The term predates modern biochemistry and does not refer to a single defined compound; the metformin precursor guanidine was the active principle.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Blood sugar

Mixed Evidence

No modern, well-controlled human evidence supports using 'glucokinin' supplements. The original plant compounds led to metformin, but the raw extracts are not safe replacements.

How it works

Early 20th-century researchers used 'glucokinin' to describe plant extracts that lowered blood sugar in animals. The actual hypoglycemic compounds in Galega officinalis turned out to be guanidine derivatives, which were too toxic for clinical use but inspired the development of metformin. As a supplement label term, 'glucokinin' is generally a marketing term rather than a defined molecular entity. It has no recognized medical use, and self-administration of products labeled as 'glucokinin' is not advised because dose and content are uncertain.

Dosage

No recognized supplemental dose.

When and how to take it

No established timing.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Marketing term

Not a standardized supplement form.

Variable / undefined.

Safety

Goat's rue (the original source) is potentially toxic; reports of livestock poisoning exist. Supplements labeled 'glucokinin' may contain unknown amounts of guanidine-related compounds or other hypoglycemic agents.

Who should be cautious

Avoid in pregnancy and breastfeeding. Anyone with diabetes considering use should consult a clinician; self-treatment risks hypoglycemia.

Interactions

Theoretical interactions with antidiabetic medications (additive hypoglycemia). Use only under medical supervision.

Food sources

Not a food source

Amount
N/A
%DV
—

Frequently asked questions

Is glucokinin the same as metformin?⌄

No. Metformin is a defined pharmaceutical derived from research that started with Galega plant extracts. 'Glucokinin' is a historical/marketing term, not a regulated drug.

References

Glucokinin on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Glucokinin (PubMed search) — PubMed link

Track Glucokinin with Pilora

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.