PUFA Poison: The Oil That Silences Your Thyroid

How seed oils hijack your hormones and slow your metabolism

🌸 Hi My Loves!

Yesterday, I talked about how prolonged starvation leads to adrenal stress and ultimately results in reduced thyroid function.

When thyroid function is reduced:

  • Our metabolism slows down

  • It becomes difficult to lose weight

  • The body starts shrinking into a lesser machine

Now let’s talk about another major factor that fries our thyroids 🥴 — Seed Oils.

👉 Check out my earlier post on PUFAs for background info!

🌻 What Are PUFAs?

PUFAs, or Polyunsaturated Fatty Acids, are commonly found in:

  • Soybean oil

  • Rice bran oil

  • Canola oil

  • Sunflower oil

They’ve been pushed as “healthy” oils, but the growing concerns around them are not without reason.

PUFA oils are not only heavily processed, but also:

  • Extracted using harmful chemicals like hexane

  • Subjected to bleaching and deodorization

  • Stripped of any natural integrity in the name of shelf life

⚡ Why PUFAs Are Chemically Unstable

PUFAs are structurally unstable due to their multiple double bonds. This instability makes them:

  • Prone to oxidation — especially when heated

  • Dangerous inside the body, where they:

    • Create free radicals

    • Cause cellular damage

    • Trigger inflammation

🚨 Estrogenic & Thyroid-Disrupting

Not only are PUFAs pro-inflammatory, but they are also highly estrogenic 😬. That’s bad news for the thyroid gland, which is extremely sensitive to oxidative stress.

The thyroid plays a central role in:

  • Hormonal balance

  • Metabolism

  • Energy regulation

When PUFAs enter the picture, they:

  • Block key enzymes involved in hormone production

  • Obstruct hormone pathways, preventing hormones from reaching target organs

  • Disrupt the conversion of T4 to active T3 hormone in the liver
    → Result: Poor metabolic health and energy levels

🧬 PUFAs: The Unwanted Guests That Never Leave

Worst of all? PUFAs accumulate in your system over time.

  • They embed into cell membranes like clingy, toxic guests 🧟‍♀️

  • Continue to oxidize your cells long after you’ve eaten them

You may have noticed this when eating deep-fried foods like:

🍟 French fries
🌮 Tortilla chips, Poori and Bathure (fried tortillas)

➡️ You feel drowsy, get brain fog, or need an urgent nap — the total opposite of what food is supposed to do: fuel and energize you.

⚠️ Daily PUFA Intake = Chronic Inflammation

People who consume PUFA-rich oils daily experience:

  • Persistent inflammation

  • Low energy levels

  • Poor metabolism

  • Weight gain and obesity

This cascade eventually leads to chronic oxidative stress → resulting in hypothyroidism 😔
A non-functional thyroid can trigger hundreds of modern lifestyle diseases.

✅ Step 1: Stop Consuming Unsaturated Fats (PUFAs)

To improve organ health, hormonal balance, and metabolism, the first step is to eliminate PUFA-rich oils.

💡 It’s not the source or brand that’s the issue — it’s their chemical instability that causes:

  • Cellular oxidation

  • Thyroid gland impairment

🧈 But What About Saturated Fats?

Contrary to popular belief (and mainstream “health advice”), saturated fats like:

  • Ghee

  • Butter

  • Coconut oil

…are actually:

  • Stable and resistant to oxidation

  • Protective for the thyroid

  • Supportive of gut health and digestion

  • Anti-inflammatory and energizing

They don’t mess with your hormonal balance or slow down your metabolism. In fact, they nourish your body and keep your engine running smoothly 🔥

💞 A Shift in Mindset: It’s Not About Restriction

After learning all this, don’t look at PUFA-containing foods (like restaurant and fast food) as just another thing you “can’t” eat.

Instead, see them through the lens of how much harm they cause to your body. 😔

  • When you understand the WHY, your body and intuition will naturally start rejecting toxic foods.

  • Pan-frying in ghee over cheap seed oils = a powerful act of self-love 💛

Protect your hormones — the jewels of your body 💎
Maintain your metabolic function
Live a vibrant, energetic life ✨

With Love,
Zitni Zun 💗

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