AMH Levels: What the Number Means and What Changes It

Published on 13 October, 2026

If you have been given a low anti-Mullerian hormone (AMH) result, the most important thing to know is that it is not a verdict on whether you can conceive. The research on this is clearer than the way the test is usually discussed, and it points in a direction that surprises most people: in women without a history of infertility, a low result did not predict a lower chance of getting pregnant.

What Anti-Mullerian Hormone Actually Measures

Anti-Mullerian hormone is produced by the small developing follicles in the ovaries. The amount circulating in blood reflects roughly how many of those follicles are present, which is why it is used as a marker of ovarian reserve.

It is a measure of quantity, not quality. It says something about how many eggs remain; it says nothing about whether those eggs are capable of producing a healthy pregnancy. Egg quality tracks with age far more closely than with any hormone level.

It is also relatively stable across the menstrual cycle, which is why it can be tested on any day, unlike follicle-stimulating hormone. That convenience is part of why it has become so widely ordered, including by direct-to-consumer testing companies, and part of why so many people are now holding a number they were given very little help interpreting.

What a Low Result Does and Does Not Predict

Natural conception: it does not predict it

The most important study here was published in a major medical journal and followed women aged 30 to 44 with no history of infertility who had been trying to conceive for three months or less.

Women with low anti-Mullerian hormone, below 0.7 nanograms per milliliter, had a predicted probability of conceiving within six cycles of 65 percent. Women with normal values had 62 percent. By twelve cycles it was 84 percent against 75 percent. Neither difference was statistically significant, and the direction, if anything, favored the low group.

The authors' conclusion was explicit: these findings do not support using anti-Mullerian hormone levels to assess natural fertility in women with these characteristics. If you are in that group and were told a low number means you will struggle, the evidence does not support what you were told.

Response to fertility treatment: it does predict that

Where the test earns its place is in planning in vitro fertilization (IVF). Anti-Mullerian hormone predicts how many eggs are likely to be retrieved in a stimulated cycle, which is genuinely useful for choosing a protocol and a drug dose, and for setting expectations.

Even there, it is not a gate. A systematic review and meta-analysis of 32 studies examined whether anti-Mullerian hormone predicts live birth after assisted conception. It found a relationship, and no discriminating threshold — no level below which live birth could not be achieved. The authors concluded that a low level should not be used as the sole criterion for refusing treatment, particularly in younger patients.

Can You Raise It?

Mostly not, and this is where most of the content on this subject goes wrong. Anti-Mullerian hormone reflects the follicle pool you have, and that pool declines with age and cannot be replenished. Here is what the evidence shows for the things commonly suggested.

Intervention	What the evidence shows
Vitamin D	A systematic review and meta-analysis found no significant effect of supplementation on anti-Mullerian hormone levels. Worth correcting a deficiency for other reasons; not a way to raise the number
Dehydroepiandrosterone (DHEA)	Studied as an adjunct within fertility treatment. In a meta-analysis of randomized trials in diminished ovarian reserve it increased the number of eggs collected. Prescription territory, within a clinic, not a supplement to self-start
Testosterone	In the same meta-analysis it was associated with higher live birth rates in diminished ovarian reserve. Again a clinical intervention used inside treatment
Coenzyme Q10	Has been studied as a pretreatment before assisted conception, with some signals around ovarian response. Evidence remains limited
Stopping hormonal contraception	Combined hormonal contraception suppresses the measured level, so a result taken while on it understates reserve and rises after stopping. This is the measurement correcting itself rather than reserve improving
Stopping smoking	Smoking is associated with lower ovarian reserve. Worth doing for a long list of reasons including this one
Diet, supplements, herbs marketed for AMH	No good evidence that any of them raise the level

What to Do With a Low Result

Find out why the test was done. If nobody suggested it and you bought it, the result may be answering a question you were not actually asking.
Read it alongside your age. Age predicts egg quality and the chance of a healthy pregnancy far better than this hormone does, and the two should never be interpreted separately.
Do not treat it as a deadline on its own. In women without a history of infertility, a low level did not reduce the chance of conceiving within a year.
Take it seriously if you are planning treatment, because this is where it genuinely informs the protocol and the expectations.
Repeat it before acting on it if it was taken while you were on hormonal contraception, since that suppresses the measured value.
Get a full assessment rather than one number. Ovarian reserve is also assessed by antral follicle count on ultrasound, and fertility involves a partner, tubes, ovulation and timing, none of which this test addresses.

What Actually Helps Fertility

The things with real evidence behind them are a healthy body weight in either direction, stopping smoking, limiting alcohol, treating thyroid disease, managing diabetes and polycystic ovary syndrome, and correctly timing intercourse to the fertile window, which is more often got wrong than people expect.

Stress is a complicated case. It is genuinely associated with fertility outcomes and it is also something couples are told about in a way that adds guilt rather than help. The reasonable position is that managing stress is worth doing because the experience of trying to conceive is hard, and that nobody should be told their stress is the reason it has not worked.

Where a Wellness Stay Fits, Honestly

YO1 is not a medical center and does not have physicians on staff; its practitioners do not diagnose or prescribe. Nothing at a wellness resort raises ovarian reserve, and anyone suggesting otherwise is selling something.

The Fertility Program exists for the part around the treatment rather than the treatment itself: weight, sleep, stress, nutrition and the physical and emotional toll of a process that is frequently exhausting. Every stay opens with a personal wellness consultation with a Health Counselor who takes a history and builds the program from there. Our guides to fertility yoga and to acupuncture for fertility cover two of the components.

Book Your Wellness Journey at YO1

The Fertility Program at YO1 addresses the sleep, nutrition, weight and stress around fertility treatment rather than the treatment itself, and every stay opens with a personal wellness consultation with a Health Counselor.

To plan a stay built around what you have come for, visit yo1.com.

FAQs

Q: What is a normal AMH level?

A: Reference ranges vary by laboratory and by the assay used, which is one reason results from different providers are hard to compare. More useful than the range is the context: anti-Mullerian hormone declines with age, and it should always be read alongside your age rather than against a single cut-off.

Q: Does low AMH mean I cannot get pregnant?

A: No. In women aged 30 to 44 with no history of infertility, those with low levels had a 65 percent chance of conceiving within six cycles against 62 percent for women with normal levels, and 84 percent against 75 percent by twelve cycles. Neither difference was significant. The study's authors concluded the test should not be used to assess natural fertility in this group.

Q: Can I increase my AMH levels naturally?

A: In most cases you cannot. The level reflects the follicle pool you have, which declines with age and cannot be replenished. A meta-analysis found vitamin D supplementation had no significant effect. Stopping hormonal contraception raises the measured value, but that is the measurement correcting itself rather than reserve improving.

Q: Does DHEA raise AMH?

A: It has been studied as an adjunct inside fertility treatment, where a meta-analysis of randomized trials found it increased the number of eggs collected in women with diminished ovarian reserve. It is a clinical intervention used within a clinic rather than a supplement to start on your own, and it has hormonal effects that need supervision.

Q: Does AMH measure egg quality?

A: It measures quantity only. The result reflects roughly how many small developing follicles are present and says nothing about whether those eggs can produce a healthy pregnancy. Egg quality tracks with age far more closely than with any hormone measurement.

Q: Is there an AMH level too low for IVF?

A: No threshold has been established. A meta-analysis of 32 studies found a relationship between the level and live birth after assisted conception but no level below which live birth could not be achieved, and concluded that a low result should not be the sole reason to refuse treatment, especially in younger patients.

Q: Does birth control affect AMH?

A: It does, and meaningfully. Combined hormonal contraception suppresses the measured level, so a test taken while using it understates ovarian reserve. If your result was taken on contraception, it is worth repeating after stopping before drawing any conclusion from it.

Q: When should I have my AMH tested?

A: It can be tested on any day of the cycle, which is part of its appeal. The more useful question is why: it genuinely informs planning for fertility treatment, and it is poorly suited to answering whether you can conceive naturally.

Q: Does stress lower AMH?

A: There is no good evidence that stress lowers ovarian reserve. Stress is associated with fertility outcomes through other routes, and the way it is usually raised with couples adds guilt rather than help. Managing it is worth doing because trying to conceive is hard, not because your stress is the explanation.

Q: What else should be checked alongside AMH?

A: Antral follicle count on ultrasound, which assesses reserve by a different route, and the rest of the picture: ovulation, fallopian tubes, thyroid function, and a semen analysis for a male partner. Fertility is rarely a one-number question, and anti-Mullerian hormone addresses only a narrow part of it.

Sources

Steiner AZ, et al. Association Between Biomarkers of Ovarian Reserve and Infertility Among Older Women of Reproductive Age. JAMA. 2017. PMID: 29049585
Using serum anti-Mullerian hormone levels to predict the chance of live birth after spontaneous or assisted conception: a systematic review and meta-analysis. Hum Reprod. 2023. PMID: 37475164
Therapeutic management in women with a diminished ovarian reserve: a systematic review and meta-analysis of randomized controlled trials. Fertil Steril. 2025. PMID: 39332623
The impact of vitamin D supplementation on anti-Mullerian hormone levels: a systematic review and meta-analysis. BMC Endocr Disord. 2025. PMID: 41437344
A systematic review of the association between modifiable lifestyle factors and circulating anti-Mullerian hormone. Hum Reprod Update. 2024. PMID: 38402486

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