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Mqrius comments on Lifestyle interventions to increase longevity - Less Wrong
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We're going to be replacing our current sunflower seeds with high oleic acid versions which will bring us down to under 5% of calories from PUFA.
Do you have a jailbroken version of that study anywhere? That's a really large effect, and the best evidence against PUFA yet if true.
The maximum total energy from PUFA has been a discussion point with DIY Soylent makers as well. The final consensus was that it should definitely be below 10%, and possibly below 4%. The 4% figure comes from The perfect health diet, which uses this as a source:
Angela Liou Y, Innis SM. Dietary linoleic acid has no effect on arachidonic acid, but increases n-6 eicosadienoic acid, and lowers dihomo-gamma-linolenic and eicosapentaenoic acid in plasma of adult men. Prostaglandins, Leukotrienes and Essential Fatty Acids 2009 Apr;80(4):201–6, http://pmid.us/19356914.
I've also got a copy hosted at http://forecast.student.utwente.nl/Lesswrong/ but only download that if your university or company legally gives you access to Elsevier content.
For the discussion and links to other relevant papers, see http://discourse.soylent.me/t/optimal-micronutrient-ratios/5049/52 and further posts
For my Soylent, I ended up getting most fats from macadamia oil (mostly Omega-9 aka MUFA) and MCT oil (Medium-chain saturated fat), since they don't have any negative effects associated with them. Correct me if I'm wrong.