T3 + Vitamin A = LDL + Pregnenolone = All Sex Steroid Hormones
About this episode
Jason Yun discusses the critical biochemical pathway involving T3, Vitamin A, and their roles in hormone production and overall health.
T3 + Vitamin A = LDL + Pregnenolone = All Sex Steroid Hormones The Critical Biochemical Pathway Most People Never Learn About In this episode of the Improvement Warrior Podcast ( Substack , Apple ), Jason Yun breaks down a critical biochemical pathway: how T3 (the active form of thyroid hormone) works with Vitamin A to help utilize LDL cholesterol, which then supports the production of pregnenolone — the precursor to all sex steroid hormones (testosterone, estrogen, progesterone, etc.). Jason explains the interconnected roles of these molecules in energy production, hormone balance, fertility, mood, and overall vitality. He connects this pathway to his core teachings on circadian biology, mitochondrial health, and the importance of proper light exposure. The discussion highlights why disruptions in this chain are common in modern life and offers practical insights into supporting it naturally through lifestyle, nutrition, and environment. Whether you’re dealing with low energy, hormonal imbalances, or simply want to understand how your body produces and regulates sex steroids at the deepest level, this episode delivers clear, actionable knowledge rooted in real biology rather…
People in this episode
Host: Jason Yun
Topics covered
- biochemical pathways
- hormone balance
- energy production
- fertility
- circadian biology
- mitochondrial health
Keywords
- T3
- Vitamin A
- LDL cholesterol
- Pregnenolone
- sex steroid hormones
- hormonal imbalances
- energy
- fertility
Mentioned in this episode
Products: T3, Vitamin A, LDL, Pregnenolone, testosterone, estrogen, progesterone
Books & works: Improvement Warrior Podcast
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