Here is a resource that uses research to back up its claims: https://www.efsa.europa.eu/en/topics/topic/dietary-reference...
And it has a good tool to find and meet those results: https://multimedia.efsa.europa.eu/drvs/index.htm
Regarding your definition of quality nutrition, you'll have to be more specific. You can find scientific research to support nearly any dietary choice.
Here is a resource that uses research to back up its claims: https://www.efsa.europa.eu/en/topics/topic/dietary-reference...
And it has a good tool to find and meet those results: https://multimedia.efsa.europa.eu/drvs/index.htm