Lactones

PhytochemicalLactone

What is it

Lactones are a broad chemical class of cyclic esters. The term covers many specific compounds (glucuronolactone, sesquiterpene lactones in plants like feverfew, statins like lovastatin) with very different biological activities.

Evidence for 1 use

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

Generic category, not a single benefit

Mixed Evidence

Benefits depend entirely on the specific lactone. The class itself cannot be assigned an evidence grade.

How it works

Activity depends entirely on which lactone is involved. Glucuronolactone is a normal product of glucose metabolism and is used in energy drinks; sesquiterpene lactones in herbs can have anti-inflammatory or cytotoxic actions; pharmaceutical lactones such as statins inhibit cholesterol synthesis. Because 'lactones' is a chemistry category, not a single ingredient, supplement labels listing 'lactones' generically are non-specific.

Dosage

No general dose. Depends entirely on which lactone is intended. Specific lactones (e.g., parthenolide from feverfew) have their own dose ranges.

When and how to take it

Depends on the specific lactone. Follow product directions.

2 commercial forms

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

Glucuronolactone

Used in energy drinks; safe at typical amounts.

Endogenous metabolite

Sesquiterpene lactones (plant-derived)

Active compounds in feverfew, dandelion, and other herbs.

Variable

Safety

Some lactones (e.g., aflatoxins, certain sesquiterpene lactones) are toxic; others are GRAS food ingredients. Generic 'lactones' labeling makes safety assessment difficult.

Who should be cautious

Without knowing the specific lactone, no general guidance applies. Consumers should request more specific ingredient identification.

Interactions

Highly compound-specific. Glucuronolactone has few known interactions; sesquiterpene lactones can interact with anticoagulants and immunosuppressants.

Frequently asked questions

What does 'lactones' on a label mean?⌄

It is a generic chemistry term. The specific compound and source need to be identified to know what it does and whether it is safe.

Are lactones safe?⌄

It depends entirely on the specific lactone. Some are safe food ingredients; others are toxic or pharmacologically active.

References

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

Research on Lactones (PubMed search) — PubMed link

Track Lactones 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.