The Hidden Danger: How Refined Fats Damage Your Health and Worsen MS

Healing naturally from MS: Discover why refined fats and commercial sauces damage your nervous system, trigger flares, and how to choose the right oils now.

Melina Wells

5/20/20263 min read

worm's-eye view photography of concrete building
worm's-eye view photography of concrete building

When you are on a journey of healing naturally from MS, every single meal is an opportunity to either feed your health or feed your inflammation.

While much of the conversation around Multiple Sclerosis focuses on gluten, dairy, or sugar, there is a hidden culprit in almost every processed food that drastically impacts your nervous system: refined fats.

If you want to protect your myelin sheath, boost your energy, and calm your immune system, understanding the danger of refined oils is one of the most powerful steps you can take. Here is why refined fats are bad news for your health—and catastrophic for MS.

What Exactly Are Refined Fats?

Refined fats are vegetable oils that have been chemically extracted, bleached, deodorized, and heated to extreme temperatures to give them a long shelf life. Common examples include:

  • Industrial seed oils (canola, corn, soybean, sunflower, and cottonseed oil).

  • Hydrogenated or partially hydrogenated oils (trans fats).

  • Margarine and commercial shortening.

Because these oils are highly unstable, the intense processing damages their molecular structure before they even hit the supermarket shelves. You are left with a dead, toxic fat that your body struggles to recognize.

How Refined Fats Fuel the MS Fire

To understand why these fats are so damaging to anyone with MS, we have to look at what MS actually is: an inflammatory, autoimmune attack on the central nervous system. Refined fats act like gasoline on that fire in three major ways.

1. They Trigger Chronic, Systemic Inflammation

Refined seed oils are packed with Omega-6 fatty acids. While our bodies need a tiny amount of Omega-6, the modern diet floods us with it. A high Omega-6 to Omega-3 ratio forces the body into a state of constant, chronic inflammation. For someone with MS, this chronic inflammation makes it much easier for the immune system to attack the brain and spinal cord.

2. They Suffocate Your Cells (Mitochondrial Dysfunction)

Your mitochondria are the powerhouse of your cells—they create the energy you need to walk, think, and breathe. Dr. Terry Wahls, famous for her MS recovery protocol, emphasizes that MS is largely a disease of cellular starvation.

When you consume refined, damaged fats, your body uses them to build your cell membranes. This makes the membranes stiff and sluggish, making it incredibly hard for nutrients to get in and toxins to get out. The result? Severe cellular fatigue.

3. They Attack the Myelin Sheath

Your brain and nerves are made up of about 60% fat. The protective coating around your nerves—the myelin sheath, which MS destroys—relies entirely on high-quality, stable fats to rebuild and repair itself.

Feeding your body refined, oxidized fats to repair myelin is like trying to build a brick house out of rotten wood. Your nervous system needs clean, vibrant, raw fats to heal, not factory-processed chemicals.

The Good News: How to Flip the Switch

The beautiful thing about your body is that it is constantly rebuilding itself. By removing refined fats and replacing them with healing, natural fats, you give your nervous system the exact building blocks it needs to repair.

What to Avoid:

  • Throw out canola, corn, and sunflower oils.

    • Why they are so destructive: These commercial oils are processed using a chemical solvent called hexane, then heated to over 200°C, and finally treated with acid and bleach just to remove the terrible smell. By the time they reach your kitchen, they are already oxidized and filled with toxic free radicals. When you consume them, they actively attack your cell walls, clog your liver, and trigger the exact type of immune response that causes MS flares.

  • Be extremely vigilant with pre-packaged and processed foods. You must read labels carefully because refined fats are heavily hidden in everyday store-bought products. They are the primary ingredient in commercial sauces, dressings, mayonnaise, and marinades, as well as potato chips and processed snacks. Always check the ingredients before buying!

  • Avoid anything containing "hydrogenated," "partially hydrogenated," or "vegetable oil blends." These are trans fats in disguise and are highly inflammatory.

  • Minimize deep-fried foods and commercial baked goods at restaurants, as they almost exclusively use cheap, recycled refined oils.

What to Embrace Instead:

  • Extra Virgin Olive Oil: Packed with polyphenols that actively fight inflammation. (Use it cold or on low heat).

  • Avocado Oil: A stable, monounsaturated fat great for cooking.

  • Wild-Caught Fatty Fish or Flaxseeds: Rich in Omega-3 fatty acids, which scientific studies (like the Swank MS diet) show can reduce the severity of MS relapses.

Your Healing Begins Today

Healing naturally from MS isn't about restriction; it’s about abundance. It’s about flooding your body with life-giving nutrients that support your nerve cells.

By making the simple switch from refined, factory-made fats to clean, natural fats, you are actively choosing to calm the inflammation and protect your brain. Your body wants to heal—give it the right fuel to do so!