Scientifically, healthy-unhealthy food does not exist. There's no health scale. Everything depends on the context.
If your blood results and other health information is stable, whatever you're eating isn't doing you any harm, then that's a healthy lifestyle.
Trying to divide foods into healthy and unhealthy is impossible.
E.g.
http://annals.org/aim/article-abstract/1846638/association-d...
>Trying to divide foods into healthy and unhealthy is impossible.
They don't try to "divide foods into healthy and unhealthy". They try to divide diets of food, including amounts and limits, into healthy and unhealthy.
You cannot say that strawberries are the healthiest food, just like you cannot say eggs are not healthy.
The study contradicts what you wrote in your comment above -- I never claimed it supports what I tell you in my comment below it, which touches on another aspect.
Unlike strawberries where relationship is linear, unlike many other vegetables. Put a healthy exercising population and the correlation disappears, I guess foods are no longer healthy in that case.
Eating 1 egg per day for the average member of the measured population seems to be healthy. It does not mean eggs by themselves are healthy or unhealthy.