The Hormone Cafe

In this episode of The Hormone Café, Dr. Sarah Pederson discusses environmental and lifestyle endocrine disruptors and how they can influence hormone balance, fertility, and long-term health.

While we are exposed to thousands of environmental chemicals every day, Dr. Pederson emphasizes that the goal is not fear or perfection. Instead, this episode focuses on simple, practical changes that can meaningfully reduce exposure without creating anxiety or overwhelm.

Dr. Pederson explains what endocrine disruptors are, how they affect hormone signaling, and the most common sources of exposure in daily life, along with realistic strategies for supporting the body’s natural detox pathways.

In This Episode, You’ll Learn

🔬 What Endocrine Disruptors Are

Endocrine disruptors are chemicals that interfere with hormone signaling in the body.

They may:

• Mimic natural hormones like estrogen
• Block hormone receptors
• Alter hormone production
• Disrupt hormone metabolism in the liver, gut, or kidneys

Because hormones operate at very small concentrations, even small chemical exposures can influence hormonal signaling.

These disruptions may be associated with:

• Irregular menstrual cycles
• Ovulatory dysfunction
• Lower egg quality
• Thyroid imbalance
• Hormone dysregulation

Why This Matters for Fertility

Many endocrine-disrupting chemicals act as xenoestrogens, which are substances that mimic estrogen in the body.

This can affect:

• Ovulation
• Hormone balance (estrogen vs. progesterone)
• Uterine lining health
• Implantation

Reducing exposure helps support healthy hormone signaling and reproductive function.

The 5 Most Common Endocrine Disruptors

1️⃣ BPA & Bisphenols

Found in:

• Plastic containers
• Plastic water bottles
• Canned food linings
• Thermal paper receipts

Why they matter:

• Can mimic estrogen activity
• May affect ovarian function and egg maturation

2️⃣ Phthalates

Found in:

• Perfumes and fragrances
• Scented candles
• Cleaning products
• Certain plastics

Why they matter:

• Associated with hormone disruption
• Can alter estrogen signaling

3️⃣ Parabens

Found in:

• Cosmetics
• Lotions
• Skincare products
• Makeup

Why they matter:

• Act as weak estrogen mimics
• May disrupt menstrual cycle regulation

4️⃣ PFAS (“Forever Chemicals”)

Found in:

• Non-stick cookware
• Waterproof fabrics
• Food packaging
• Stain-resistant materials

Why they matter:

• Can affect thyroid function
• May impact ovarian hormones

5️⃣ Pesticides

Found in:

• Conventionally grown produce
• Lawn chemicals
• Agricultural environments

Why they matter:

• Linked to endocrine disruption
• Can influence ovarian function

The 80/20 Rule for Reducing Exposure

It is impossible to avoid all environmental chemicals, and the goal is not perfection.

Instead, focus on reducing the biggest exposures most of the time.

80% of the time: choose healthier options
20% of the time: occasional exposure is okay

Your body has natural detox pathways that can process small exposures.

Simple Changes That Make the Biggest Impact

1️⃣ Avoid Heating Food in Plastic

Heat increases chemical leaching from plastics into food.

Instead use:

• Glass containers
• Stainless steel
• Ceramic cookware

2️⃣ Use Glass or Stainless Steel Water Bottles

Plastic water bottles can release bisphenols and plasticizers, especially when exposed to heat.

Choosing glass or stainless steel reduces daily exposure.

3️⃣ Reduce Canned Foods

Many cans contain BPA-based linings.

Look for:

• BPA-free cans
• Glass jars
• Frozen foods instead of canned

4️⃣ Choose Fragrance-Free Personal Care Products

Many scented products contain phthalates and parabens.

Look for labels that say:

• Fragrance-free
• Paraben-free
• Phthalate-free

If a product contains fragrance, choose ones with natural ingredients you recognize.

5️⃣ Wash Produce Thoroughly

Pesticide exposure can be reduced by:

• Washing fruits and vegetables well
• Choosing organic for high-pesticide foods (“Dirty Dozen”)

Support Your Body’s Detox Pathways

Even when exposures occur, the body has natural detoxification systems.

Support these systems by focusing on:

• 25–30 grams of fiber daily
• Adequate hydration
• Regular movement and circulation
• Liver and gut health

A healthy liver, gut, and kidneys help the body process and eliminate environmental chemicals efficiently.

Key Takeaways

• Endocrine disruptors are chemicals that interfere with hormone signaling
• Some can mimic estrogen and disrupt fertility
• The most common exposures include plastics, fragrances, cosmetics, cookware, and pesticides
• The goal is awareness, not perfection
• Small daily changes can significantly reduce exposure over time