Mark Hyman on Industrial Seed and Vegetable Oils: warns against

Hyman warns against refined industrial seed and vegetable oils — corn, soybean, canola, safflower, and sunflower oils — which he says are highly refined, unstable, and inflammatory, pushed by trusted institutions on what he calls flawed advice. He advises replacing them with extra-virgin olive oil, avocado oil, grass-fed butter/ghee, and coconut oil in moderation.

His stated reasoning includes a historical argument: in a Dr. Hyman Show episode on vegetable oils, he traced industrial vegetable oils to early-1900s products like Crisco and warned against hydrogenated fats. He has also said seed oils come from crops that are “usually GMO,” which he cites as another reason to prefer whole-food fats. His rule of thumb, stated in 2025: “Don’t eat butter with a bagel, put it on your broccoli” — the saturated-fat-plus-refined-starch combination is what he calls damaging. (All claims are Hyman’s, presented in his voice per house rules.)

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