My attempt at dietary modification of my tissue PUFA concentrations is an experiment. After skimming through searches I could not find reliable and detailed information on a low PUFA diet. Apparently the lack of information on reducing PUFA concentrations in vivo through dietary modification is a known issue. I discovered the following quote from this article by Ray Peat:
"Metabolic intensity and longevity can be modified by changing the degree of saturation of fats in the diet and tissues, but--despite almost a century of sporadic investigations--no one has yet worked out in detail the most appropriate way to do this."
You can follow my amateur experimental diet on Jimmy Moore's Livin' La Vida Low Carb site.