Does estrogen really cause breast cancer? It's one of the biggest fears women have when considering HRT, and in this conversation, Dr. Lindsey Berkson takes Tara back to where much of that fear began. They unpack the history of the Women's Health Initiative, how the original messaging around hormones shaped medical practice, and what later analyses of the research have shown.
Dr. Berkson explains why she believes estrogen has been misunderstood, including the difference between estrogen's effects on different receptors and why "estrogen-positive" breast cancer does not necessarily mean estrogen caused the cancer. They also discuss research involving women with ER-positive breast cancer who received estrogen and what those studies reported.
Dr. Berkson then shares her own breast cancer story and why it ultimately led her to spend decades researching hormones. This is a fascinating conversation about how medical messaging evolves, why women need to understand the details behind the studies, and why Tara believes these are conversations women deserve to have.
In Part 1:
- The history of the Women's Health Initiative and why it was created
- What the early research was actually showing about estrogen and breast cancer
- The controversial press release that changed the conversation around HRT
- What 20 years of reanalysis of the Women's Health Initiative revealed
- Oral vs topical vs vaginal estrogen: why delivery method matters
- Tara's experience with vaginal progesterone and sleep/anxiety
- The controversy surrounding oral progesterone
- The debate around estriol
- What "estrogen-positive" breast cancer actually means
- The theory behind estrogen and progesterone fueling breast tumors
Dr. Lindsey Berkson
Lindsey Berkson, MA, DC, CNS, DACBN was a Distinguished Hormone Scholar at the Center for Bioenvironmental Research (CBR: Tulane/Xavier Universities). She is a leading figure in integrative medicine, renowned for her expertise in hormones, nutrition, digestion, and environmental science. With a background as a clinician, professor, bestselling author, and radio show host, she brings a wealth of experience to her work. At the CBR, she collaborated with pioneers in estrogen and sex-steroid receptor research. Dr. Berkson is also a respected educator, teaching MDs and pharmacists in advanced certification courses. She has developed innovative nutraceuticals, holds patents in bioidentical hormone therapy, and has contributed to groundbreaking research on dialysis/pharmaceutical medications and nutrition. Dr. Berkson consults internationally, focusing on medical nutrition for breast cancer, inflammatory bowel disease, renal problems, and complex health issues.
Dr. B's Links:
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Hormones: Vilified to Vindicated (Course) - https://drlindseyberkson.com/v2v/
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