When relatives have said this kind of thing to me, I've realized that they feel that by my making different choices than they did, that I am attacking them, saying that what they did was wrong, or not good enough, and so I would call this a "**defense mechanism".

I'd say it's an association fallacy They're saying "A did X" and "A felt great", therefore "doing X is associated with feeling great".

For more possibilities, wikipedia has a nice list of fallacies.

Anecdotal evidence.

Also, sometimes people will say "I did X and it worked just fine for me" when really it didn't - the person in question is actually 100lbs overweight, and suffering from multiple dietary-related health problems. But they aren't dead yet, so obviously it "worked just fine".

"Post hoc ergo propter hoc."

Latin for "after this, therefore because of this." This familiar logical fallacy states, "Event XYZ followed event ABC, therefore, event ABC caused event XYZ."

Similar to the fallacy of association or correlation. The mere association of two events (key word "mere") reveals no causal relationship. Though a causal relationship may in fact exist in the association/correlation. Or in the first example, the preceding event may actually be the cause of the succeeding event.

In the two cases, eating egg yolks and eating rice cereal simply preceded "turns out fine."

I had salmon for lunch yesterday. Things turned out OK today.

Phew. Close call. I think I'll live dangerously. Tomorrow, tuna.

I agree with Jess: it's an anecdote.

Not that you were asking for a response, but the only one I can think of to such a funny assertion is "Imagine how well they would have turned out if you hadn't!"

But I also agree with Rogue that it's a defense mechanism, and therefore a strong indicator to change tactics if you want to be heard.

The problem here is that you're looking for logic that will overrule people who aren't using logic in the first place. That probably won't work out too well for you.

You could, I suppose, point out that 40 years ago you were supposed to start with cereal very early and now they say wait a while. Back then, you were supposed to put the baby on its stomach and now they say put him/her on their backs.

So even conventional wisdom changes from year to year. You're doing what seems best based on what you now know.

I'd call that an n=1 experiment. :)

I usually just ignore it, or gently begin on the research behind why I do what I do, and let them choose. I know that is how I changed my views on food - researched, sound nutritional information from a variety of people and sources. If it gets them thinking, you're doing a good job, even if they still insist xyz food is the best.

I rarely go into things expecting to change minds, but a little dialog back and forth can be immensely helpful.

That person is evidence of the effectiveness. Have you created this topic so that people will support your decision to do something different? Have you posted for the purpose of rallying Paleo support against convention?