Ridiculous Study of the Week

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Somehow this is news:

Women who embraced a healthy diet after being diagnosed with type 2 diabetes had significantly lower rates of all-cause and cardiovascular mortality than did those with a bad diet, in a large observational study with up to 26 years of follow-up.

So, to summarize, a healthy diet is good for you.  And a bad diet is, well, bad for you.   Did we not know this?  And someone got funding for this?