Evidence-based·Last reviewed May 30, 2026·How we grade evidence

7-KETO-DHEA

HormoneDHEA metaboliteBest with a meal

Useful mainly for adults seeking modest weight-loss support alongside diet and exercise (limited evidence).

Quick decision guide

May help most

adults seeking modest weight-loss support alongside diet and exercise (limited evidence)

Common dosing range

100–200 mg/day in divided doses

When to expect effects

Weeks (with diet and exercise)

Watch out for

limited long-term safety data; may affect thyroid hormone levels

What is it

7-keto-DHEA (3-acetyl-7-oxo-dehydroepiandrosterone, also known as 7-oxo-DHEA) is a naturally occurring metabolite of DHEA. Unlike DHEA itself, 7-keto-DHEA cannot be converted into testosterone, estrogen, or other sex steroid hormones, which makes it appealing as a supplement for people seeking metabolic effects without androgenic or estrogenic activity.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if…

You want a non-androgenic DHEA metabolite and accept weak evidence
You will pair it with calorie restriction and exercise

Probably skip if…

You want a proven weight-loss aid
You take thyroid medication or have thyroid disease (consult first)
You expect memory, immune, or anti-aging benefits

Evidence at a glance

resting metabolic rate / thyroid hormone effects

Mixed Evidence
Effect
Small changes in metabolic markers
Best fit
context of weight-management research only
Time
Weeks

Evidence for 1 use

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

resting metabolic rate / thyroid hormone effects

Biomarker support
Mixed Evidence

Small studies report modest changes in resting metabolic rate and thyroid hormone (e.g., T3) measures with 7-keto-DHEA, proposed as a mechanism for its weight effects. These are biomarker changes, not demonstrated clinical thyroid benefits, and reported changes generally stay within normal ranges. They should not be interpreted as treating or improving thyroid function.

Effect size
Small changes in metabolic markers
Time to effect
Weeks
Best fit
context of weight-management research only

Bottom line: Reported metabolic-marker changes are a possible mechanism, not a proven clinical benefit.

SourceZenk et al., 2007 — PubMed

How it works

7-keto-DHEA is produced when DHEA undergoes 7-alpha hydroxylation and oxidation. In the body, it cannot be converted back into DHEA or its downstream sex hormones. Proposed mechanisms for its supplement effects include modest increases in resting metabolic rate, possibly through induction of thermogenic enzymes in the liver. It may also have effects on cortisol and immune function based on small studies. Most of the marketing centers on weight management, with a few small clinical trials reporting accelerated weight loss when combined with a calorie-restricted diet and exercise. Effect sizes are modest. Other claims (memory, immune support, anti-aging) lack robust clinical evidence.

How to take it

1. Typical dose
100 mg twice daily (100–200 mg/day total) in most studies
2. Timing
morning and afternoon; avoid evening if it disturbs sleep
3. With food
with food to reduce GI effects
4. How long to try
trial several weeks combined with diet and exercise

What to track

body weight and waist
any sleep changes
thyroid symptoms if applicable

1 commercial form

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

7-keto-DHEA (3-acetyl-7-oxo-DHEA)

The most common commercial form. The acetate version is the one studied in most clinical trials.

Better absorbed than 7-oxo-DHEA without acetate

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

nauseadizziness

Serious risks

  • rare changes in liver enzymes

Who should avoid it

  • pregnant or breastfeeding women
  • people with thyroid or liver disease or on thyroid medication without clinician guidance

Pregnancy & breastfeeding

Avoid in pregnancy and breastfeeding due to insufficient safety data.

Interactions

thyroid medicationsModerate

possible effects on thyroid hormone levels reported in some studies

diabetes medicationsMinor

theoretical metabolic effects; monitor

corticosteroidsMinor

theoretical hormonal/metabolic interaction

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for…

7-keto-DHEA / 7-oxo-DHEA clearly stated
dose per serving listed
third-party tested for identity and purity

Be skeptical of…

'boosts metabolism' as a standalone fat burner
anti-aging or immune claims
testosterone or hormone-optimization claims

Frequently asked questions

How is 7-keto-DHEA different from DHEA?⌄

7-keto-DHEA cannot be converted into testosterone, estrogen, or other sex hormones, while DHEA can. This makes 7-keto attractive for people who want metabolic effects without androgenic or estrogenic side effects.

Does 7-keto-DHEA really help with weight loss?⌄

Some small studies show modest additional weight loss when combined with diet and exercise. Effects are not large, and independent replication is limited.

Is 7-keto-DHEA legal?⌄

Yes, it is sold as a dietary supplement in the US and many other countries. It is permitted in some sports settings where DHEA itself is banned, but check your specific governing body's rules.

Will 7-keto-DHEA affect my hormones?⌄

It does not significantly affect testosterone or estrogen levels. It may slightly affect thyroid hormone (T3); long-term effects are not well characterized.

Is 7-keto-DHEA safe?⌄

Short-term studies report good tolerability. Long-term safety data are limited.

References by claim

resting metabolic rate / thyroid hormone effects

Zenk et al., 2007 — PubMed (2007) link

Track 7-KETO-DHEA with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

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Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·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.