09/08/2025
Anybody else sick of seeing bu****it online about seed oils and how they are bad for you?
One of my pet hates at the minute.
As some of you may be aware. I'm very meticulous about nutritional research and de bu****itting fads. There's so much rubbish that goes around in order to push agenda's, glamourise certain things and demonise other.
There's very often this sensationalism created around certain topics that become fashionable.
Right now it's certainly seed oils.
A lot of it seems to come from the carnivore crowd when people question the amount of saturated fat they are consuming.
You're sick because of seed oils etc.
Let's look at some actual proper research.
One of the most robust, trustworthy assessment's of the evidence comes from a Cochrane review published in 2020.
This included 15 controlled studies, with over 56,000 participants, and found that replacing saturated fat with unsaturated fat reduced the risk of cardiovascular events by 21%. The source of unsaturated fat used in these studies included seed oils!
Another review of 15 human studies, which looked at the actual markers of inflammation, concluded there’s virtually no data from randomized, controlled studies, showing that adding seed oils to diets increases markers of inflammation in healthy adults. And yet another analysis of 83 controlled human studies, of people with and without inflammatory bowel disease, found that increasing omega-3, omega-6 or total polyunsaturated fatty acid which are contained within seed oils had either little or no effect on inflammatory markers or risk of disease
Plenty of references for you.
Mozaffarian D, Micha R, Wallace S. Effects on coronary heart disease of increasing polyunsaturated fat in place of saturated fat: a systematic review and meta-analysis of randomized controlled trials. PLoS Med. 2010;7(3):e1000252. doi: 10.1371/journal.pmed.1000252.
Rett BS, Whelan J. Increasing dietary linoleic acid does not increase tissue arachidonic acid content in adults consuming Western-type diets: a systematic review. Nutr Metab. 2011; 10:8:36. doi: 10.1186/1743-7075-8-36.
