The health benefits of the Mediterranean diet are known.
The eating style consists of lots of veggies, fruit, fish and olive oil.
Researchers say the diet has been shown to strengthen bones, improve brain health and reduce the risk for diabetes.
Now, researchers are discovering the Mediterranean diet scores another win for longevity by improving our microbiome.
A new study of Americans shows that replacing just five grams of margarine or butter with olive oil can make a big impact.
According to CNN, the switch was associated with up to a 7% lower risk of coronary artery disease.
To put that into context, five grams is about a half pat of butter or margarine.