Are Vegetable Oils Killing Us? We Swapped Them In for Animal Fats 50 Years Ago|Vital Signs

Are Vegetable Oils Killing Us? We Swapped Them In for Animal Fats 50 Years Ago|Vital Signs

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540 Video Views·Jul 5, 2025

Our switch from cooking with animal fats—like butter—to cooking with vegetable oils runs back more than fifty years. It was thought that this would lower cholesterol and the rate of heart attacks.

Has switching to vegetable oils benefited our health overall, or is the trend going the other way?

Dr. Joseph Mercola says that “sugar is not intrinsically evil … however, seed oil is.” Dr. Mercola is a natural health physician and doctor of osteopathy who writes extensively on body detoxification.

What is the hidden number one source of seed oil (also known as vegetable oil) in our diets?

“A lot of health experts believe that … lowering the sugar is the way to get healthy,” says Dr. Mercola.

“But when you look at almost all processed foods, there’s a lot more seed oils than there is sugar.”

What does research over recent years signal about vegetable and seed oils and cancer?

On Vital Signs with Brendon Fallon, we ask, “is vegetable oil killing us?”


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Vital Signs’ host, guests, and contributors offer general information on improving health and wellness. This is not intended as diagnosis or medical advice. You should consult your medical doctor or holistic doctor before enacting any suggested strategies for health and wellness improvement, including those in relation to preventing or treating specific diseases featured on this program.