Continuing the discussion from DIY - Optimally efficient bio-available micronutrient sources: research / articles / spreadsheets?:
There are a lot of threads here discussing ratios of Omega 6 to Omega 3. As I’ve spent time looking into it, I found that older research tends to wrap their findings in terms of the ratio of Omega 6 to Omega 3, but the newer research tends to just look at the level of Omega 3. Theory has evolved, and these days the medical and scientific community has moved away from a focus on ratios. It seems the important part is simply the level of Omega 3’s.
A lot of research was done based on ratios, but when you re-cast their results based on Omega 3’s, the results are comparable or even clearer. And as anyone who has looked at a DIY formula quickly realizes, in practice, it’s very hard to bring down the ratio of 6:3 by reducing Omega 6, and still get any decent level of fat in the diet - it’s far easier to bring up the level of Omega 3.
The idea of most “ideal” ratios seems to be a wrong turn for the nutrition of fats, but rather than dying off, as it has in the scientific community, it’s taking off in popular nutrition… I think this especially because of the Paleo trend. Those trying to mimic various “traditional diets” look at the ratios in those foods and try to emulate them. Within Paleo, I even see people trying to come with ideal ratios of Omega 9 : Omega 6 : Omega 3. I don’t think those attempts are on sound scientific footing.