The Estrogen You Can't See: Understanding Kickback, Testing, and Tissue Storage

Estrogen plays a pivotal role in various bodily functions for both women and men. However, an imbalance, particularly estrogen dominance, can lead to a range of health issues. One phenomenon associated with addressing this imbalance is "estrogen kickback," which can occur during hormone therapy. Understanding this response, recognizing its symptoms, and exploring effective testing and detoxification methods are essential steps toward achieving hormonal harmony.

PART 1: UNDERSTANDING, SYMPTOMS, TESTING & DETOX

Understanding Estrogen Kickback

"Estrogen kickback" refers to the temporary resurgence or intensification of estrogenic symptoms when initiating progesterone therapy. This reaction occurs as progesterone begins to interact with estrogen receptors, potentially displacing stored estrogen from tissues into the bloodstream. This sudden increase in circulating estrogen can exacerbate symptoms before achieving hormonal balance.

You can experience breast cysts upon starting progesterone therapy, attributing it to estrogen kickback. We emphasize the importance of persisting with hormone replacement therapy (BHRT) despite initial discomfort, as these symptoms often subside as the body adjusts.

Symptoms of Estrogen Kickback

The symptoms of estrogen kickback can mirror those of estrogen dominance and may include:

• Mood Swings: Sudden emotional fluctuations, including irritability and anxiety.

• Breast Tenderness: Increased sensitivity or discomfort in breast tissue.

• Bloating: Abdominal fullness or swelling.

• Weight Fluctuations: Notable changes in body weight, often due to fluid retention.

• Fatigue: Persistent tiredness or low energy levels.

These symptoms arise as the body responds to the shifting balance between estrogen and progesterone during therapy.

Challenges in Testing Estrogen Levels

Accurately assessing estrogen dominance presents challenges, primarily because traditional blood tests may not reflect the true estrogen activity within tissues. Estrogen can accumulate in tissues, rendering blood serum levels an unreliable indicator of total estrogenic effect.

According to Kitty Matrone, a functional nutritionist, health educator, author of Balance Matters: Rethinking Estrogen, Reclaiming Progesterone, Restoring Hormonal Stability, relying solely on blood tests can be misleading, as they may not capture the estrogen stored in tissues. Instead, monitoring symptoms and even prolactin levels offers a more accurate assessment. Elevated prolactin can indicate increased estrogen activity, as estrogen stimulates prolactin production.

Undertstanding various testing methods before you start BHRT by Carol Peterson, a hormone coach.

Prolactin as a Marker for Estrogen Activity

Prolactin, a hormone primarily associated with lactation, serves as a valuable marker for estrogen activity. Since estrogen stimulates prolactin secretion, elevated prolactin levels can signal excessive estrogen influence. Therefore, testing prolactin provides a more comprehensive understanding of estrogen's impact on the body than measuring estrogen levels alone.

Detoxifying Naturally Excess Estrogen with Raw Carrot Salad

Incorporating specific dietary practices can aid in detoxifying excess estrogen. One such method is the consumption of raw carrot salad, a concept popularized by Dr. Ray Peat. Raw carrots contain unique fibers that bind to endotoxins and surplus estrogen, facilitating their elimination from the body. Regular intake of raw carrot salad can support hormonal balance and reduce estrogen dominance.

Recipe for Raw Carrot Salad

Ingredients:

- 1-2 raw carrots, peeled and shredded

- 1 tablespoon of coconut or olive oil

- 1 tablespoon of apple cider vinegar

- A pinch of sea salt

Instructions:

- Combine the shredded carrots in a bowl.

- Add the oil, apple cider vinegar, and sea salt.

- Mix thoroughly to ensure the carrots are well-coated.

The fibers in raw carrots act similarly to charcoal, binding to toxins and excess hormones, thereby promoting their removal and aiding in restoring hormonal balance. Consume this salad once daily to assist in estrogen detoxification.

DIM Supplements are also a way to detox estrogen. DIM is a nutritional approach to achieving a safer and healthier estrogen metabolism, or of protecting it. We recommend your detox pathways are clear, prior to taking DIM supplements will mitigate any negative detox symptoms.

Causes of Estrogen Kickback

Estrogen kickback can be triggered by several factors, particularly during the initiation of progesterone therapy.

Progesterone Introduction: Starting progesterone can displace stored estrogen from tissues into the bloodstream, temporarily increasing estrogenic activity. It's important to be progesterone dominant, not estrogen dominant, so it's recommended alongside the preventative measures to mitigate estrogen kickback.

Dosage Adjustments: Rapid changes in progesterone dosage may lead to fluctuations in estrogen levels, intensifying symptoms.

Individual Sensitivity: Variations in individual hormonal responses can influence the severity and duration of estrogen kickback.

Managing Estrogen Kickback

To navigate estrogen kickback effectively:

Gradual Progesterone Introduction: Starting with a low dose and gradually increasing allows the body to adjust, potentially minimizing kickback symptoms.

Monitor Prolactin Levels: Regular testing can provide insights into estrogen activity and help guide therapy adjustments.

Dietary Support: Incorporating foods like raw carrot salad can aid in detoxifying excess estrogen.

If you're dealing with estrogen dominance symptoms, consider checking prolactin levels and incorporating dietary changes to naturally support hormone health.

After Menopause, Where Does Estrogen Actually Come From? 

Contribution by Kitty Martone

PART 2: ESTROGEN FACT 

After menopause, we don't just stop making estradiol because the ovaries slow down. We still have several ways to make it:

• Estrone → estradiol

• Estrone sulfate → estrone → estradiol — and estrone sulfate is actually a pretty significant estrogen reservoir.

• Estradiol sulfate → estradiol

• We can also make estrogen from androgens — testosterone can convert to estradiol, and androstenedione can convert to estrone and then estradiol.

So after menopause, estrogen production doesn't disappear, it shifts. Our fat, breast, bone, brain, skin and other tissues can still make and use estradiol locally from these precursors.

SO LET ME ASK YOU THIS:

    Q: What do these all have in common?

    Fat. Breast. Bone. Brain. Skin.

    A: They're all tissues.

    Q: And where can postmenopausal women still make and use estrogen?

    A: In the tissues.

    Q: Now where do we routinely measure hormones?

    A: In the blood.

And there's the problem: we're measuring what's circulating and assuming it tells us everything about what's happening in the tissues.

A blood lab of low estrogen is not etched in stone. It's meant to be measured against your other symptoms and especially Thyroid and vitamin D.

Going off blood labs is like looking at your bank's checking account and assuming it represents your entire net worth. You're seeing one compartment, not the whole system.

This is exactly why estrogen kickback can be so confusing to navigate: the symptoms are real, but a single blood draw rarely tells the whole story — especially post-menopause, when tissues are quietly doing their own estrogen production behind the scenes. Prolactin monitoring, symptom tracking, thyroid and vitamin D levels all matter alongside the blood work, not instead of it.

About Kitty

Kitty Martone is a functional nutritionist, health educator, author of Balance Matters: Rethinking Estrogen, Reclaiming Progesterone, Restoring Hormonal Stability, and host of the podcast Stuff Your Doctor Should Know. For more than a decade, she has been educating women about hormones, metabolic health, gut health, and the importance of looking beyond isolated lab values to understand the bigger physiological picture

Would you like more insights on hormone balance? Share your experiences in the comments below!

Sources:

https://healthygutgirl.substack.com/

https://www.forefronthealth.com/test-for-estrogen-dominance/

https://plattwellness.com/blogs/news/managing-estrogen-dominance-the-power-of-raw-carrot-salad

https://thewellnessbydesignproject.com/2023/12/the-specter-of-estrogen-dominance/

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.