108: Estrogen Myths & Bioidentical Truths with Jeffrey Dach, MD (Part 2)

25 Aug 2025 · 71 min
1:11:00

Jeffrey Dach, MD discusses estrogen's complex role in breast cancer, including how it can trigger cancer cell death at high doses. He critiques mammography screening for overdiagnosis, explains why bioidentical hormones differ from synthetic progestins, and covers prevention strategies like selenium and vitamin D testing.

Questions this video answers

Maya Nielsen (Copenhagen) 1987 autopsy of 110 women <50 found 22 (20%) had breast cancer (mostly in situ).

Approximately 60,000 cases of DCIS detected per year (quoted).

Roughly 42,000 women dying annually of breast cancer (quoted).

Jordan suggested at least five years (quoted); Dach suggested clinical recurrences were absent when deprivation exceeded ~2 years in one study (speaker speculation).

A serum selenium cutoff of 135 (units not stated) is used in his practice (quoted).

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