DHEA Supplement: Uses, Risks, and Precautions in Canada

DHEA is a hormone made mainly by the adrenal glands, which the body then converts into estrogens and androgens. In the United States, it's sold as an over-the-counter supplement. In Canada, it's an entirely different story: it's a controlled substance, and Health Canada regularly seizes unauthorized products containing it. Before you're tempted by the promise of a "youth hormone," here's what the research actually shows, the documented risks, and the precautions you need to know.

A Hormone, Not a Plant

DHEA, or dehydroepiandrosterone, has nothing to do with a plant extract or a vitamin. It's a steroid the body produces on its own, mainly in the adrenal glands, and it serves as the raw material for making sex hormones.

Its production peaks in young adulthood, in the twenties, then gradually declines over the years. By around age 70, levels represent only a fraction of those measured in early adulthood.

This decline is what fuels much of the marketing around the product. The reasoning seems logical: if DHEA drops with age, replacing it should slow aging down. The problem is that an age-related decline doesn't prove that reversing it reverses anything. And that's precisely what studies struggle to show.

DHEA's Legal Status in Canada

This is the point that most French-language websites, often European or American, leave out entirely.

What the law says. DHEA, under its name prasterone, appears on Schedule IV of the Controlled Drugs and Substances Act, under anabolic steroids and their derivatives. This law prohibits trafficking, which includes selling, substances on Schedule IV. It also prohibits importing and exporting it, except in cases authorized by regulation.

What Health Canada does. The agency regularly publishes advisories about DHEA supplements seized from Canadian retailers, notably in 2018 and again in July 2025. In these advisories, DHEA is described as a controlled substance that may pose serious health risks. An unauthorized product hasn't undergone any assessment of its safety, effectiveness, or quality.

What this means in practice.

• A DHEA supplement sold in-store or online in Canada without authorization is a non-compliant product.
• Ordering a bottle of DHEA from an American website amounts to importing a controlled substance.
• You won't find DHEA on the shelves at La Boîte à Grains, or in any natural food store that follows the regulations.

The medical exception. In November 2019, Health Canada authorized a prasterone-based drug in the form of a vaginal insert, available by prescription, to treat vulvovaginal atrophy after menopause. Some Quebec clinical settings, in assisted reproduction in particular, also use DHEA in specific protocols, under medical supervision. In every case, this is use overseen by a physician, not a self-medication routine.

What the Research Says About Its Usefulness

Here's the state of the evidence for the most commonly promoted uses.

In short, the dramatic benefits attributed to DHEA don't hold up under scrutiny. The few legitimate leads concern specific medical situations, followed by professionals.

Risks Documented by Health Canada

Because DHEA converts into sex hormones, its adverse effects stem directly from that transformation. In its public advisories, Health Canada states that DHEA can:

• cause abnormally elevated levels of female and male hormones;
• increase the risk of prostate, breast, ovarian, and other hormone-sensitive cancers;
• contribute to serious cardiovascular disease;
• alter fertility and sperm production;
• cause acne and increased hair growth in women;
• worsen certain psychiatric disorders.

On top of this is a quality issue. A product bought outside authorized channels offers no guarantee about the actual dose, or even about the presence of other undeclared substances.

Who Should Avoid DHEA

Health Canada recommends complete avoidance for people with a history of abnormal heart rhythms, blood clotting disorders, or liver disease, as well as for women who are pregnant or breastfeeding.

Other profiles call for the same caution:

• Personal history of hormone-sensitive cancer (breast, prostate, ovarian).
• Polycystic ovary syndrome, where androgen balance is already disrupted.
• Mood disorders or psychiatric conditions, even well controlled.
• Children and adolescents.
• Athletes subject to anti-doping testing.

On the interaction side, DHEA may increase bleeding risk with anticoagulants. Manic episodes have been reported in people taking antidepressants, and interactions with certain antipsychotics have also been noted. If you're on hormone therapy or hormonal contraception, your doctor obviously needs to be in the loop.

If a Doctor Suggests It: The Right Questions to Ask

Sometimes a healthcare professional will consider DHEA in a specific context. If that happens, a few questions will help you see things clearly:

• What's the exact goal? A measurable outcome, not a vague "energy boost."
• Is bloodwork planned? Before starting, then along the way, to track hormone levels.
• What form, what dose, what duration? And where will the product be obtained, through proper channels?
• What signs should prompt me to stop? Sudden acne, hair growth, mood changes, palpitations.
• Could my other medications and supplements be a problem? Bring the complete list, natural health products included.

Supporting Your Hormonal Balance Without a Controlled Substance

If what draws you to DHEA is fatigue, a decline in libido, or the changes that come with your fifties, the first step remains a checkup with your doctor. Many of these symptoms have verifiable causes: thyroid, iron, sleep, menopause or andropause, medication side effects.

From there, the basics remain essential: enough sleep, effective stress management, regular physical activity, and a diet that provides enough protein and healthy fats. Our article Life and Hormones, a Matter of Balance covers, among other things, the effect of chronic stress on women's hormonal balance.

On the natural health products side, our hormonal support section brings together formulas targeting different life stages. Essential reflex: check that the container carries a natural product number. If that term isn't familiar to you, our article on the natural product number (NPN) explains what it guarantees.

Because the right choice depends on your age, your history, and your medications, our licensed naturopaths offer personalized consultations. They can help clarify your goals and point you toward your doctor when the situation calls for it.

Frequently Asked Questions

Is it illegal to take DHEA in Canada?

DHEA is a controlled substance listed on Schedule IV of the federal law. Its sale and import are prohibited, except in cases authorized by regulation. In practice, legitimate use goes through a medical framework. For a precise legal question about your situation, consult a legal professional.

Does DHEA raise testosterone?

It can raise both male and female hormone levels, since the body converts it into androgens and estrogens. That's exactly what explains its adverse effects, like acne or increased hair growth. This isn't a safe way to change your hormone levels without medical supervision.

Is wild yam a natural source of DHEA?

No. Wild yam contains diosgenin, a molecule that can be converted into hormones in a laboratory. The human body, however, isn't known to carry out this conversion, and consuming wild yam extract hasn't been shown to raise DHEA levels.

How do I know if a supplement contains DHEA?

Read the list of medicinal ingredients. Look for the terms "DHEA," "dehydroepiandrosterone," or "prasterone." Be wary too of any product without an NPN that promises to "reset" your hormones: the absence of authorization means no one has verified what it actually contains.

The Bottom Line Before You Decide

DHEA isn't a supplement like any other. It's a hormone, classified as a controlled substance in Canada, whose proven benefits are limited to specific medical contexts and whose risks touch the heart, fertility, and hormone-sensitive cancers. If you're questioning your energy, your libido, or your hormonal balance, start with a medical checkup and the basics of a healthy lifestyle.

Come see our team at one of our four Gatineau locations, or reach us at 819-771-3000. Our naturopaths will take the time to look at your situation with you and suggest compliant options tailored to what you're really looking for.

References

1. Summary Basis of Decision for Intrarosa. Health Canada. 2019. https://dhpp.hpfb-dgpsa.ca/review-documents/resource/SBD00466
2. Regulations Amending the Designated Substances Regulations, Canada Gazette Part I, Vol. 158, No. 22. Government of Canada. 2024. https://gazette.gc.ca/rp-pr/p1/2024/2024-06-01/html/reg2-eng.html
3. Unauthorized 21st Century DHEA health product seized from a Moose Jaw, SK store is labelled as containing a controlled substance. Health Canada. 2018. https://recalls-rappels.canada.ca/en/alert-recall/unauthorized-21st-century-dhea-health-product-seized-moose-jaw-sk-store-labelled
4. Unauthorized Natrol DHEA Mood and Stress health product sold by Retail Revolt may pose serious health risks. Health Canada. 2025. https://recalls-rappels.canada.ca/en/alert-recall/unauthorized-natrol-dhea-mood-stress-health-product-sold-retail-revolt-may-pose
5. Dehydroepiandrosterone for women in the peri- or postmenopausal phase. Scheffers CS et al., Cochrane Database of Systematic Reviews. 2015. https://pmc.ncbi.nlm.nih.gov/articles/PMC10662543/
6. What Should Athletes Know about DHEA. USADA. https://www.usada.org/spirit-of-sport/athletes-know-about-dhea/
7. DHEA. Mayo Clinic. 2026. https://www.mayoclinic.org/drugs-supplements-dhea/art-20364199
8. Herbal preparations for the menopause, beyond isoflavones and black cohosh. Depypere HT, Comhaire FH., Maturitas. 2014. https://www.sciencedirect.com/science/article/abs/pii/S0378512213003514