Dihydrocapsaicin

PhytochemicalCapsaicinoidBest with a meal

What is it

Dihydrocapsaicin is one of the main capsaicinoid compounds in chili peppers (Capsicum species) and is closely related to capsaicin. It contributes to the heat of chilis and is found in supplements aimed at metabolic support.

Evidence for 1 use

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

Metabolic rate (minor increase)

Limited Evidence

Small short-term studies of capsaicinoid blends show modest increases in energy expenditure and fat oxidation. Effect sizes are small and clinical relevance is uncertain.

How it works

Dihydrocapsaicin activates the TRPV1 receptor, a sensor for heat and chemical irritation. This activation can transiently increase sympathetic nervous system activity, raising metabolic rate and fat oxidation by small amounts. Unlike capsaicin, dihydrocapsaicin (or its non-pungent ester, dihydrocapsiate) is sometimes marketed as a 'cool' capsaicinoid that delivers metabolic effects with less burning sensation. The clinical evidence for meaningful weight or metabolic effects is small and inconsistent.

Dosage

There is no established Recommended Dietary Allowance. Research doses for capsaicinoid blends typically range from 2 to 10 mg per day. Product labels rarely isolate dihydrocapsaicin from total capsaicinoids.

When and how to take it

Dihydrocapsaicin is usually taken with meals, especially in pre-meal or fat-burner blends. Avoid taking close to bedtime if it causes heartburn.

1 commercial form

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

Dihydrocapsiate

Often used in 'cool' capsaicinoid supplements that aim to deliver metabolic effects without the burning sensation.

Non-pungent ester form; better tolerated than free capsaicinoids.

Safety

Generally well tolerated in food doses. Higher doses can cause heartburn, stomach irritation, or sweating. Topical contact with concentrated forms can cause skin and eye burning.

Who should be cautious

People with gastric reflux, ulcers, irritable bowel syndrome, or hemorrhoids may experience worsened symptoms. Avoid in pregnancy and breastfeeding unless directed by a clinician.

Interactions

Capsaicinoids may interact with blood-pressure medications, ACE inhibitors, anticoagulants, and certain hypoglycemic drugs. Caution with combinations affecting heart rate or blood pressure.

Food sources

Chili peppers (hot varieties)

Amount
Variable, typically 0.1 to 1 mg per chili
%DV
—

Frequently asked questions

Is dihydrocapsaicin the same as capsaicin?⌄

They are closely related capsaicinoids found together in chili peppers. Dihydrocapsaicin is slightly less pungent in some forms.

Will it help me lose weight?⌄

At best it produces a small, short-term bump in metabolic rate. It is not a substitute for sustained dietary changes.

References

Dihydrocapsaicin on Wikidata — Wikidata link

Dihydrocapsaicin (ChEBI:46932) — ChEBI link

Dihydrocapsaicin (PubChem CID 107982) — PubChem link

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

Research on Dihydrocapsaicin (PubMed search) — PubMed link

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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.