For anyone wondering what the heck a 'fortified' egg is, it's an egg from a hen that's been fed flax seed, which has a lot of alpha-linoleic acid in it. That ALA ends up in the eggs that hen lays. It's often described as 'omega 3 in an egg', but the people who eat them still have to do the conversion themselves. This ability to convert varies quite a lot between individuals, but that variability doesn't seem to show in the results, so... I would *guess* that being fortified doesn't much matter here.

Also: eggs aren't just an 'excellent source of protein' (mostly in the whites, BTW) but the egg yolks are a particularly good source of lecithin which is about the best methyl donor you can get. This matters for those of us with one of the MTHFR SNPs - which is about 75% of us; the 25% of us with both SNPs really need those donors (TMI, but I'm happy to not be in that bottom quartile).

And if you think omega 3s matter here (they might!) consider taking a supplement that doesn't require conversion (e.g. cod liver oil).