They didn't list this, but most things I've heard (eg, "How Not to Die" by Dr. Michael Greger who reads a lot of studies) is to eat a whole food, plant based diet. Might not have to give up meat completely, but the less you eat, the healthier you will tend to be.

This isn't an exact answer, but the article links here:

https://www.nhs.uk/live-well/healthy-body/

That page has some dietary recommendations:

- Eat more fibre (at least 30g a day)

- Cut down on saturated fat

- Get your 5 A Day (servings of fruit and vegetables)

- Cut down on salt (no more than 6 grams a day)

- Eat fish (at least twice a week)

If you live 10 years longer, you're almost guaranteed to have top 10% healthy diet score.

be rich. eat organic. cut sugar consumption