P. D. Mangan tackles that question:
“Grass-fed beef has more omega-3 than grain-fed, but it’s dwarfed by salmon.
What can we conclude from this?
If you eat chicken with any frequency, say once a week, grass-fed beef will not decrease the amount of omega-6 fats that you consume. The chicken in your diet will overwhelm any decrease in omega-6 from eating grass-fed beef.
If you eat any salmon at all – and this is generally true for eating any type of fatty fish – you would get a far greater amount of omega-3 fats than from grass-fed beef.”
His info is quite interesting. I always assumed grass-fed was worth buying, I just couldn’t afford it back in the US. P. D. argues that you’d be better off going for salmon instead.
Here all the meat is grass-fed, with the exception of chicken which I don’t really like anyway, unless it’s one of my farm-raised birds.
I’m not sure about salmon. Much of it is now farmed, which may not be ideal, and the wild-caught salmon from Alaska I believe is contaminated with Fukushima isotopes.
Does it ever seem to you that life, and especially health, is filled with lots of “less bad” choices but few really good ones?