This is true, just adding sardines your diet will probably do nothing for most people. It’s more about the elimination of other things we eat as well. It wasn’t until I was eating only salmon for my fat and protein source that I was able to raise my HDL from 35 to 54!.
I credit this to totally eliminating the omega-6 fats. But this is just me because I’m a genetic freak with hyperlipidemia.
The value of reducing Omega-6 is over-hyped. The issue here is that when you eat a can of sardines, you tend to not eat them with a big load of carbohydrates, like white bread, rice, pasta, fries...
Totally eliminating omega-6 from your diet can't be healthy, can it? There are only two essential fatty acids for humans and one of them (linoleic acid) is omega-6.
Well, I exaggerated to make a point. Even salmon has long chain omega 6. I soul have said "eliminating plant based omega 6" and this is just for me and my genetics. People without certain FADS1 genetics can do fine with short chain omega 3 and 6.
I credit this to totally eliminating the omega-6 fats. But this is just me because I’m a genetic freak with hyperlipidemia.