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> “While we took into account whether this was just due to what well-off people eat and drink, randomized clinical trials are needed to determine if making easy changes in our diet could help our brains in significant ways.”

So they are aware of the possibility of this effect, yet didn’t bother with it. Sounds like replication crisis to me.

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That’s not what the replication crisis is; replication crisis is more like 20 groups doing experiments that have a 1/20 chance of success if the effect wasn’t real, the one who got the positive result publishing it, the 19 who didn’t keeping quiet about it, and nobody else bothering to replicate the experiment with the one success to see if it was real or fluke.

What you’re quoting is more of “follow up studies will look at this”.

> So they are aware of the possibility of this effect, yet didn’t bother with it. Sounds like replication crisis to me.

No, that is doing small study correctly.

The whole point of small scale studies is to figure out whether paying for bigger one is waste of time and money. Randomized clinical trials are expensive. There is no point of doing them if small studies dont show effect. However, if you do small study, it is correct to point out limitations.

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