Real hormone problems have names and tests, which “balance your hormones” claims lack

Key takeaways

• In a 2013 lab test of 10 thyroid supplements, 9 contained the thyroid hormone T3, including all five herbal products whose labels never mentioned hormones.
• A 2016 review of 58 studies found no consistent evidence that “adrenal fatigue” exists, and the Endocrine Society warns that adrenal hormones you don’t need can shut your own glands down.
• The Menopause Society says saliva tests haven’t been shown to be accurate, and that how your symptoms respond is the only reliable guide to a hormone dose.
• “Bioidentical” hormones such as estradiol and micronized progesterone come in FDA-approved forms, so natural-minded patients don’t have to rely on custom-compounded blends.
• If you feel exhausted, gain weight or have hot flashes, ask for specific tests for specific conditions rather than a vague “hormone panel.”

In 2013, a team of researchers bought 10 thyroid supplements from stores and the internet and sent them to a lab. Five were herbal products whose labels said nothing about hormones. The other five listed raw thyroid tissue from cattle¹.

Nine of the 10 contained T3, one of the two main thyroid hormones. At least four also held T4, the other one¹. One herbal product, taken as its label directed, would deliver 92 micrograms of T4 and 17 micrograms of T3 a day¹.

The authors warned that products like these could throw off thyroid blood tests and even cause thyrotoxicosis, a state of too much thyroid hormone¹. They measured what was in the capsules, not what happened to people who took them¹.

Picture a shopper who wants a gentle, natural nudge for a tired thyroid. Based on that study, she could end up swallowing an unlabeled dose of thyroid hormone, the same kind of hormone doctors prescribe for an underactive thyroid⁵.

“Balance your hormones” is a familiar promise on supplement labels, podcasts and clinic websites. It speaks to real problems: exhaustion, weight change, hot flashes, low mood, poor sleep. Those deserve answers.

But “hormone imbalance” by itself isn’t a diagnosis. The hormone conditions doctors treat have names, tests and treatments that work. This is how to sort them from the marketing.

Your hormones are supposed to rise and fall

Your endocrine system includes eight major glands, among them the thyroid, the pituitary, the adrenal glands and the pancreas. Their hormones shape growth, metabolism, sexual function and mood².

Hormone levels aren’t meant to hold still. The Menopause Society, a professional group of menopause specialists, notes that levels shift from day to day and even within a single day³.

Your body runs its own balancing system. In the thyroid’s case, the pituitary gland in your brain releases thyroid-stimulating hormone, or TSH, which tells the thyroid how much hormone to make⁴. That’s why a high TSH usually points to an underactive thyroid, and a low TSH to an overactive one⁴.

The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of NIH, describes an endocrine disease as hormone levels that are abnormally high or low, or a body that doesn’t respond to its hormones normally². That definition implies something you can measure, a normal range and a known pattern. A list of vague symptoms isn’t enough.

This self-regulating system is the kind of bodily wisdom natural-health traditions respect. The goal is to find out whether one part has broken.

Real hormone problems have names, tests and treatments

Several hormone disorders are common, and their symptoms overlap with the complaints that “balancing” products target. That overlap is exactly why testing matters.

Condition	What’s going on	How it’s found	Usual treatment
Underactive thyroid (hypothyroidism)	The thyroid makes too little hormone; nearly 5 in 100 Americans age 12 and up have it5	TSH first, then free T4 and sometimes antibodies4	Levothyroxine, a thyroid hormone pill, with blood tests to adjust the dose5
Polycystic ovary syndrome (PCOS)	Irregular ovulation and high male-type hormones (androgens)6	Usually two of three features: irregular ovulation, high androgens or their signs, and follicle clusters on ultrasound6	Depends on goals and symptoms; a clinician tailors it
Adrenal insufficiency	The adrenals make too little of certain hormones, including cortisol; Addison’s disease affects about 100 to 140 people per million7	Blood tests, most often an ACTH stimulation test that checks whether cortisol rises8	With treatment, most people live normal, active lives; patients carry an emergency steroid shot7
Menopause	Periods stop for good as the ovaries wind down	Mostly symptoms and menstrual history; a blood test for follicle-stimulating hormone (FSH) can help, especially after a hysterectomy3	Hormone therapy or nonhormonal medicine, judged by how symptoms respond314

Notice that NIH’s child-health institute uses the phrase “hormonal imbalance” to describe PCOS, which it says is also known as polyendocrine metabolic ovary syndrome (PMOS)⁶. The phrase has a real home. It just points to a defined condition with diagnostic criteria, not to a general feeling of being off.

Symptoms alone can mislead in both directions. NIDDK lists tiredness, weight gain, feeling cold, dry skin and low mood among signs of an underactive thyroid, then cautions that fatigue and weight gain don’t necessarily mean a thyroid problem⁵. Only testing can tell.

Adrenal fatigue: real exhaustion, unconfirmed diagnosis

The adrenal fatigue theory says long-term stress wears out the adrenal glands until they can’t make enough cortisol⁹. The Endocrine Society, a professional group of hormone specialists, says no scientific proof supports it as a true medical condition, and that the tests offered to detect it aren’t based on science⁹.

In 2016, two endocrine researchers at the Federal University of São Paulo in Brazil, Flavio Cadegiani and Claudio Kater, tested the idea with a systematic review in the journal BMC Endocrine Disorders. They screened 3,470 articles and kept 58 studies that tested the cortisol system in people with fatigue¹⁰.

The results pointed every which way. Of 27 studies of the morning cortisol rise, 14 found a normal response, 9 a weaker one and 4 a stronger one¹⁰. The insulin tolerance test, considered a gold standard for this hormone system, wasn’t used in any of them¹⁰.

The authors concluded there was no evidence that adrenal fatigue is a real condition¹⁰. They were candid about limits: most studies were descriptive and used cortisol tests that hadn’t been validated¹⁰. A review can’t prove a negative. What it showed is that years of cortisol testing in tired people never produced a consistent pattern.

Your exhaustion is still real. The Endocrine Society suggests looking for causes that can be confirmed and treated, such as true adrenal insufficiency, depression or obstructive sleep apnea⁹.

The bigger worry is treatment. Many adrenal supplements haven’t been tested for safety, the Society warns, and adrenal hormones you don’t need can cause your own glands to stop working for months⁹. That can set up adrenal crisis, a life-threatening emergency⁹. Without a real diagnosis, you can end up treating a problem you don’t have while missing the one you do.

“Thyroid support” can contain the thyroid drug you were avoiding

Back to the 2013 study. In a journal commentary, Jerome Hershman, a UCLA professor of medicine and the journal’s editor, reported that T3 ranged from 1.3 to 25.4 micrograms per tablet, and T4 from less than 0.5 to 22.9 micrograms¹.

For scale, Hershman recalled a 1986 report he co-wrote about five people who developed too much thyroid hormone from a mail-order weight-loss product. It held 84 micrograms of T4 and 9 micrograms of T3 per capsule¹. At its labeled dose, one herbal “support” product in the 2013 study would deliver more T4 each day than one of those capsules held¹.

The herbal capsules also held 100 to 240 micrograms of iodine each¹. That matters. NIDDK warns that iodine supplements and iodine-rich seaweeds such as kelp can cause or worsen an underactive thyroid, especially in Hashimoto’s disease⁵.

There’s a quieter harm, too. Hidden hormone can distort your test results, so a clinician may misread your thyroid. Hershman advised doctors to ask about supplement use, especially when results look unexpected¹.

The study is small and from 2013, and products change. But it shows why “natural” on a hormone product deserves the same scrutiny as a prescription. If you already take thyroid medicine, NIDDK’s advice is plain: never stop it without talking with your doctor⁵.

Saliva tests and custom blends promise a precision science can’t deliver

A common sales path runs like this: a saliva test reveals your “imbalance,” then a custom-compounded cream or pellet fixes it. Saliva testing is often paired with custom blends³. Each step has a problem.

The Menopause Society says the best hormone levels after menopause have never been established. It calls your symptom response to a given dose the only reliable guide³. It says saliva testing hasn’t been shown to be accurate or reliable, and that even blood tests can’t capture levels that shift through the day³.

Then there’s the word “bioidentical.” A 2014 practice guide from the society, then called the North American Menopause Society, explained that the term is a marketing label the FDA doesn’t recognize¹¹. It refers to hormones biochemically similar to the body’s own, typically made from soy or yam starting materials that must be chemically processed¹¹.

This is a point that often gets lost: bioidentical hormones are already sold as FDA-approved products. They include estradiol in pills, patches, gels, sprays, rings and creams, and micronized progesterone¹¹. Approved products are tested for purity and potency, and come with full safety information¹¹. One hormone often found in custom blends, estriol, isn’t FDA-approved¹¹.

In 2020, the National Academies of Sciences, Engineering, and Medicine reviewed compounded bioidentical hormone therapy. Surveys suggested 1 to 2.5 million U.S. women age 40 and older use it, filling 26 million to 33 million prescriptions a year at a cost of $1 billion to $2 billion¹². The committee cautioned that those estimates rest on limited data¹².

The committee found that claims of better safety and effectiveness for custom blends weren’t backed by well-designed studies¹³. Because doses aren’t standardized, patients risk getting too much, too little or a contaminated product¹³. It advised using custom blends only when a patient is allergic to an ingredient in an approved product or needs a form that isn’t available¹³.

Menopause care is changing, and some herbs are still unproven

Menopause is where hormone claims and hormone medicine meet most often, and the official picture shifted recently.

In November 2025, after reviewing the research, the FDA moved to remove broad boxed warnings from menopause hormone therapy. At its request, 29 drug companies proposed new labels. On February 12, 2026, the agency approved the first batch, covering six products¹⁴.

Their boxed warnings no longer carry risk statements about cardiovascular disease, breast cancer and probable dementia¹⁴. The FDA called it a first batch, so ask your pharmacist which label your own product carries.

The FDA pointed to randomized trials showing that women who start hormone therapy within 10 years of menopause, generally before age 60, had lower death rates from all causes and fewer fractures¹⁴. It also noted a gap: in 2020 about 41 million U.S. women were 45 to 64, but only about 2 million women ages 46 to 65 got a hormone therapy prescription¹⁴. Risks still appear in the full label, so the choice belongs in a conversation with a clinician who knows your history¹⁴.

Herbal options look weaker. The National Center for Complementary and Integrative Health (NCCIH) reports inconsistent results for black cohosh, soy and red clover, and says flaxseed worked no better than a placebo for hot flashes¹⁵. Rare cases of serious liver damage have been reported with black cohosh, though it’s uncertain whether the herb caused them¹⁵.

Some mind-body approaches look more hopeful. An NCCIH-funded study found hypnotherapy reduced how often hot flashes occurred¹⁵. NCCIH’s summary was last updated in 2017, so newer research may change the picture¹⁵.

Hormone claims, decoded

Use this table when a product, test or practitioner promises to rebalance you.

The claim	What’s known	What to do instead
“You have adrenal fatigue.”	No consistent evidence it exists; its tests aren’t validated910	Ask about tests for adrenal insufficiency, sleep apnea, depression and thyroid disease
“Thyroid support will wake up a sluggish thyroid.”	Some products contained real T3 and T4 plus large amounts of iodine1	Get a TSH test and bring every bottle you take to your appointment
“A saliva test shows your hormones are off.”	Saliva tests haven’t been shown accurate; levels shift daily3	Ask what decision the test will change and whether a standard blood test fits better
“Custom bioidentical hormones are safer and more natural.”	Superiority claims aren’t supported; doses vary13	Ask whether an FDA-approved bioidentical product would work11
“This herb balances menopause hormones.”	Results for black cohosh, soy and red clover are inconsistent15	Track symptoms, set a time limit and watch for liver warning signs
“Your weight gain is a hormone problem.”	Weight gain alone doesn’t mean a thyroid problem5	Ask for a basic workup, then look at sleep, food, activity and medicines

How strong is the evidence?

Claim or approach	Evidence level	Why
Levothyroxine for a diagnosed underactive thyroid	Strong evidence	The standard treatment, adjusted with blood tests5
FDA-approved hormone therapy for moderate to severe hot flashes	Strong evidence	Approved for this use; timing and personal risks matter14
Hypnotherapy for hot flashes	Promising but early	An NCCIH-funded study found fewer hot flashes15
Black cohosh, soy or red clover for menopause	Not enough evidence	Results are inconsistent15
Saliva testing to guide hormone doses	Not enough evidence	Not shown accurate or reliable3
Custom-compounded hormones as safer than approved ones	Not enough evidence	Few well-designed studies13
“Adrenal fatigue” as a diagnosis	Evidence says no, or unsafe	A 58-study review found no substantiation10
Adrenal hormones or unlabeled thyroid supplements without a diagnosis	Evidence says no, or unsafe	Can suppress your glands or cause excess thyroid hormone19

When to get help

Call 911 for signs of adrenal crisis: severe pain in the belly, back or legs, vomiting, diarrhea, weakness, confusion or loss of consciousness⁷. Take it seriously if you recently stopped adrenal hormones, since your own glands may still be idle⁹.

See a clinician soon if fatigue, weight change, irregular periods or hot flashes are disrupting your life. Bring a list of every supplement, including “glandular” and “support” products, since they can change test results¹.

If you think a supplement harmed you, report it to the FDA through MedWatch or the Safety Reporting Portal, and keep the bottle.

Questions readers ask

The bottom line

Your hormones do need to stay in a healthy range, and your body works hard to keep them there. When something truly breaks, it usually has a name, a test and a treatment that has been checked in people.

The trouble starts when a vague feeling becomes a product pitch. Unconfirmed diagnoses, saliva tests that can’t guide a dose and supplements with hidden hormone all sell certainty that the science doesn’t support. Ask for the specific test, the specific condition and the approved product first.

Related reading

• Why one flagged lab number is not a diagnosis
• When the company reading your labs also sells the fix
• What gets into supplements that isn’t on the label
• Why observational studies got smoking right and hormone therapy wrong
• When extra medical tests do more harm than good

Sources

1. Hershman JM. “Thyroid Health Supplements Contain Significant Amounts of Thyroid Hormones” (commentary on Kang G, Parks JR, Bader F, et al., “Thyroxine and Triiodothyronine Content in Commercially Available Thyroid Health Supplements,” Thyroid, 2013). Clinical Thyroidology, American Thyroid Association, 2013. thyroid.org
2. National Institute of Diabetes and Digestive and Kidney Diseases. “Endocrine Diseases.” NIH, accessed October 2026. niddk.nih.gov
3. The Menopause Society. “What Is Hormone Testing?” Accessed October 2026.
4. National Institute of Diabetes and Digestive and Kidney Diseases. “Thyroid Tests.” NIH, last reviewed 2017. niddk.nih.gov
5. National Institute of Diabetes and Digestive and Kidney Diseases. “Hypothyroidism (Underactive Thyroid).” NIH, last reviewed 2021. niddk.nih.gov
6. Eunice Kennedy Shriver National Institute of Child Health and Human Development. “About Polycystic Ovary Syndrome (PCOS).” NIH, accessed October 2026. nichd.nih.gov
7. National Institute of Diabetes and Digestive and Kidney Diseases. “Definition & Facts of Adrenal Insufficiency & Addison’s Disease.” NIH, accessed October 2026. niddk.nih.gov
8. National Institute of Diabetes and Digestive and Kidney Diseases. “Diagnosis of Adrenal Insufficiency & Addison’s Disease.” NIH, accessed October 2026. niddk.nih.gov
9. Endocrine Society. “Adrenal Fatigue.” Endocrine Library, updated January 2022. endocrine.org
10. Cadegiani FA, Kater CE. “Adrenal Fatigue Does Not Exist: A Systematic Review.” BMC Endocrine Disorders, 2016. link.springer.com
11. North American Menopause Society. Practice Pearl on the concerns about custom-compounded “bioidentical” hormone therapy. Menopause, 2014;21(12):1298–1300 (copy hosted by Michigan State University). menopause.obgyn.msu.edu
12. National Academies of Sciences, Engineering, and Medicine. “The Clinical Utility of Compounded Bioidentical Hormone Therapy,” Chapter 8: The Use of Compounded Bioidentical Hormone Therapy. National Academies Press, 2020 (NCBI Bookshelf). ncbi.nlm.nih.gov
13. National Academies of Sciences, Engineering, and Medicine. “Prescribers Should Restrict the Use of Non-FDA-Approved Compounded Bioidentical Hormones Except for Specific Medical Circumstances.” News release, July 1, 2020. nationalacademies.org
14. U.S. Food and Drug Administration. “FDA Approves Labeling Changes to Menopausal Hormone Therapy Products.” Press announcement, February 12, 2026. fda.gov
15. National Center for Complementary and Integrative Health. “Menopausal Symptoms: In Depth.” NIH, last updated May 2017. nccih.nih.gov