ELI5: seed oils vs sugar health controversy
// explanation
What are seed oils and sugar?
Seed oils come from plants like sunflowers and soybeans [1], while sugar is the sweet stuff in candy and soda. Both are foods people eat, but some people think one is worse for you than the other [6].
Why do people argue about them?
Some wellness influencers on the internet say seed oils are "toxic" and bad for your heart [3][5], but doctors and heart experts say this isn't supported by science [2][4]. It's like people spreading a rumor that turned out not to be true.
What does the science actually say?
Scientists have tested seed oils like canola and soy, and found "no reason to avoid" them — they're actually heart-healthy fats [2][4][5]. Scientists have "debunked" the claims that seed oils are toxic [5].
So which is worse?
The real science shows seed oils aren't the problem people claim [5], but comparing them directly to sugar requires looking at how much of each you eat and how your body uses them [6].
// sources
Mar 14, 2025 ... Seed oils include sunflower oil, canola oil (which is made from rapeseed), soybean oil, corn oil, safflower oil and grapeseed oil.
Aug 20, 2024 ... American Heart Association News covers heart disease, stroke and related health issues. Not all views expressed in American Heart ...
Jun 6, 2025 ... Some wellness influencers warn against consuming seed oils, blaming them for a range of health problems and characterizing them as toxic.
Mar 1, 2025 ... Don't believe the naysayers — canola, soybean, and other seed oils can be a good source of heart-healthy fat if you use them wisely ...
Jun 22, 2022 ... June 22, 2022—While the internet may be full of posts stating that seed oils such as canola and soy are “toxic,” scientific evidence does ...
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