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Which oils and fats support metabolic health - and which ones to avoid.
Not all fats affect your metabolism the same way. Fats high in linoleic acid (LA) - the dominant fat in most industrial seed oils - interfere with your body's ability to recognize when cells have enough energy. This can promote fat storage, increase hunger, and contribute to insulin resistance over time. Fats low in LA (animal fats, coconut oil, olive oil) support normal metabolic signaling. The goal is not to avoid all fat, but to choose the right fats.
| Instead of | Use | When |
|---|---|---|
| Vegetable / canola oil spray | Butter or ghee | Scrambled eggs, sautéed vegetables |
| Soybean oil (restaurant fryer) | Tallow or lard | French fries, fried chicken |
| Corn oil (home frying) | Beef tallow or lard | Pan-frying, deep frying |
| Sunflower / safflower oil | Avocado oil or olive oil | Salad dressings, marinades |
| Margarine / vegetable spread | Butter or ghee | Toast, baking, cooking |
| "Light" olive oil | Extra virgin olive oil | Dressings, low-heat cooking |
Seed oils are listed on ingredient labels as: vegetable oil, soybean oil, canola oil, corn oil, sunflower oil, safflower oil, cottonseed oil, or partially hydrogenated oil. They appear in most packaged snacks, crackers, chips, salad dressings, mayonnaise, fast food, and restaurant cooking. When eating out, ask what oil is used for cooking. Many restaurants will switch to butter on request.
You do not need to count calories or avoid fat. Focus on the type of fat: cook with animal fats, butter, ghee, or olive oil. Avoid industrial seed oils in packaged foods and restaurants. This single change can meaningfully reduce your linoleic acid intake and support better metabolic health over time.