If you eat a serving of grilled chicken 5 times a week as part of an overall balanced diet you will not damage your bodily due to horrible eating... though you may find the other ~16 meals a week you're eating something without a serving of grilled chicken suddenly a lot more interesting.
"Eat a balanced diet of healthy foods" is good advice but whether or not you've achieved that has nothing to do with whether you had 5 servings of the same thing or not. You can have an extremely healthy diet and still regularly eat something many times a week, just don't try to make that something a McDonalds shake.
Either you took my comment out of context or I did not do a good job in communicating the idea. I said:
"Outside of what I've come to refer to the "food should be food" group, if you regularly consume five or more servings per week of any food, you will do damage to your body in one of many ways"
Clarified, in simpler terms, this means: Do not eat highly processed shit food.
Restated, if you regularly consume five or more servings of shit food per week, you will do damage to your body.
There's nothing whatsoever good about these foods. Some of the damage isn't immediately visible. This is particularly true of maintaining healthy gut bacteria. The well documented connection between gut bacteria and the nervous system means that damage to gut bacteria can have far reaching consequences.
Furthermore, it takes time to repair damage such as rebuilding gut flora, fatty liver, insulin resistance, etc. There's nothing whatsoever good about regularly eating highly processed foods. Nothing.
My greater point is that health is a complex multivariate problem. The internet is full of single variable "fixes" that are nothing less than ridiculous. Eating five servings of chocolate, drinking wine once a day, drinking coffee, various supplements, etc., etc., ad nauseum. All of it nonsense. Eat real food in moderation and exercise. It's that simple.
I also recoil at some of these research projects, because, for some strange reasons, they always seem to reach ridiculous conclusions and the idea of the studies are ridiculous to start with.
Among these none has caused more damage to society than the government-pushed dietary guidelines published in the late 1970's. Since then, obesity and extreme obesity have absolutely exploded. Not to mention the whole menu of metabolic diseases that have come with a likely 10-fold increase in the consumption of sugar per capita and cocktails full of truly harmful substances.
I could go on. All I'll say is I am glad RFK is involved in potentially disrupting the way we deal with some of the things that have become leading causes of death in societies around the world.
"Eat a balanced diet of healthy foods" is good advice but whether or not you've achieved that has nothing to do with whether you had 5 servings of the same thing or not. You can have an extremely healthy diet and still regularly eat something many times a week, just don't try to make that something a McDonalds shake.