Causes of Estrogen Dominance (Exogenous and Endogenous Sources)

Exogenous Estrogen Sources 

• Contraceptives and HRT 

• Phytoestrogens (soy, flax, black cohosh, chaste berry, etc.) 

• Xenoestrogens  

• Sunscreens  

• Makeup, shampoos, face/body washes, lotions, deodorants – parabens  

• Plastics – BPA, phthalates, DEHP, PCBs 

• Building supplies – PCBs 

• Insecticides – atrazine, dieldrin, endosulfan 

• Herbicides – glyphosate (Roundup) 

• Feminine hygiene products and toilet paper 

• Animal protein sources 

• Beef, pork, chicken – growth hormone, estrogen. 

• Farmed fish – soy feed 

Nutrient deficiency – B vitamins (B7 folate, B6, B12) 

            Enzyme production for use in estrogen clearance/detox 

            Magnesium – Estrogen detoxification 

Over-consumption of alcohol - Slows or decreases the oxidation of estrogen in the liver (clearance)

Endogenous Estrogen Sources  

• Ovarian overproduction of estrogen                                

• Corpus luteum underproduction of progesterone (especially in menopause)         

• Overproduction of estrogen in the breast (10-50 times higher than can be found in the blood)               

• Hepatic estrogen clearance dysfunction                

• Conversion dysfunction (DHEA, testosterone, etc.) 

• Cortisol interference due to increased adrenal output 

• Hypothyroidism         

• Gut dysbiosis  - bacterial imbalance decreases an enzyme needed for conversion to the form of estrogen needed for elimination.  

• Genetic dysfunction 

1. Methylation  (carbon with 3 hydrogens is added to another compound) - common chemical process in the body. Vital for proper DNA function – allows engagement or disengagement from certain genes. If methylation is impaired, it can cause a host of problems.  

2. Gene MTHFR responsible for making the enzyme that regulates the metabolism of folate (Vitamin B7)        

3. Gene COMT - responsible for making the enzyme that regulates the levels of estrogen.  

List provided by Dr. William C. Amalu, Founder of Eagle Institute of Clinical Thermology and author of chapter 25, “Infrared Imaging of the Breast” in the Biomedical Engineering Handbook: Medical Devices & Systems, Ed 3.

These images show increase in this client’s estrogen dominance after her first visit but by the third visit, only five months after second visit, she and her doctor reversed the signal and report reflected the images have “significant improvement” in pattern representing estrogen dominance. (see her story here.)

Risk-Lowering Power of Compounded Progesterone Capsule on Estrogen Dominance in Only 5 Months! Risk Reversal Clear as Day

Black & White images show the ”significant improvement” in the pattern of estrogen dominance in approximately 5 months, plus she lowered her risk so much that her left breast got a better grade. Heat around a nipple can signal a problem and her left breast had heat encircling the warmer nipple.

This client’s story is fascinating and illustrates how important it can be to attend followup imaging plus how important to refrain from assuming that commercial formulations of bio-identical hormones that give undesired results are the end of the road.

Client’s first attempt at using progesterone to improve estrogen dominance symptoms was via Prometrium, a commercially available bio-identical brand. Unfortunately, 100 milligrams made her “feel like a zombie” so her doctor switched her to a compounded (personally mixed for her) progesterone capsule. No more zombie effect and she was able to increase to 200 mg. Black and white images (black is hot) show the powerful risk-lowering effects in only five months!

She felt so much better overall that she became more active, stronger and more fit, even shed a few pounds as you can see in the images!

Images above depict her second and third thermograms, below are all three. Her second imaging showed worsening in left breast, so she and her doctor, Kathryn Walker at Renu, developed a plan and executed it beautifully to reverse the trend! (Last we heard Walker is booked 9 months out but there are more brilliant practitioners - a client survey of who is/are your favorite doctor(s) is upcoming and we will publish results on this blog to give you more options!)

Below you see first session Sept 2023, second May 2025 and third Sept 2025. Her left breast increased in signal around the nipple by the second imaging and in the dark area leading up to armpit increasing her left breast’s grade between visits 1 & 2 but by visit 3, she had reversed the trend, grade returned to 2023 grade and estrogen dominance pattern is visibly even better than where she began in 2023 after only five months of getting hormones dialed in!

What contributes to Estrogen Dominance? Sources, Exogenous & Endogenous Ones

Self-Proclaimed Estrogen Hormone "Expert" Wendy Sellens Gets Respectfully Corrected by Peers Which Becomes An Estrogen Lesson For All of Us

Wendy Sellens casts a dark shadow on the Father of Thermography, Dr. William Hobbins, M.D., quoting research that no one can find that he did, which according to her is that estrogen exists only in sex organs and she “knows” this because of tissue samples Hobbins supposedly took on all this other human tissue! ? What?!

Is it possible she wasn’t listening to Dr. Hobbins? (Want to assess whether she listens to her interviewers? Interviews below*)

Two people in the health field, Jay Feldman and Mike Fave, felt compelled to shine light on Wendy’s mistakes lest they mislead:

Ep. 125: Wendy Sellens on Estrogen: What She Got Wrong Nov 7, 2024

As a huge fan of Dr. William Hobbins’ work in thermography, it was beautiful watching complete strangers, Mike and Jay, come to his defense when he is six feet under and no longer able to speak for himself.

To their beautiful credit, Strong Sistas recently interviewed the two gentlemen that made the rebuttal to Wendy’s questionable claims, showing their ability to recognize truth and embrace it; those are here:

Why Modern Biohacking is Making You Sicker Not Stronger
&
Male Fertility is Falling Fast & Her'e’s Why (With Mike Fave). Estrogen comes up again of course in male fertility.

Mike and Jay call out by name all kinds of “medical experts” making claims that they feel are inaccurate with potential of harming others.

For example, they show, Dr. Ken Berry’s claims as highly questionable in Ken Berry’s Fructose Fearmongering, Glycation Myths, & ChatGPT Says We’re Wrong.

Jay and Mike also address AI’s deficiencies, particularly the risks when questions aren’t perfectly composed by someone that actually knows the correct answers, i.e., incorrect answers 🙈)!

Have you heard that AI has come to thermography? Beware of offices claiming superiority or higher accuracy because they utilize AI… it’s actually an old program out of India. Dr. Amalu can give you a thorough explanation of why it’s not ready for prime time.

*BELOW: NOT RECOMMENDED VIEWING, posted only in case you want to verify statements of Sellens.
Are you Actually Low in Estrogen? Jul 29, 2024
Too Much Estrogen or Not Enough? Aug 13, 2024
How Estrogen Affects Your Health . Aug 21, 2024
Hormone Masterclass: Estrogen Level 1 W/ Dr. Wendy Sellens Aug 28, 2024