It's very complex, yet very simple.

People are smart enough to create substances that fool their senses and make their life more comfortable-in the short and intermediate term.

They are not smart enough to realize that there is a limit to the burden of foreign materials they can put on the human body. They are not smart enough to realize how little they truly know about the normal and abnormal physiology and how little they truly know of the effects of seemingly minor alterations on human health.

The fact that they do not see immediate detrimental results makes them think that this practice is safe. Their greed makes them create more and more such substances (as previous ones have been proven to be safe).

We now see more and more, the detrimental results of this approach. If you bother to read (and not ignore) you will see on a nearly weekly basis results of studies showing endocrine dysfunction, neurotoxicity, fertility, cancer caused by such seemingly safe substances.

I would personally suggest that you stop eating processed foods. I would clearly not use more than the recommended amount of such foods. I would not use any product which has the words- artificial flavor or fragrance on it.

Those seemingly innocent names hide a myriad of potentially toxic materials. Those are considered "professional secrets" and therefore the law does not require disclosure of the actual ingredients.

There is nothing healthy or nutritious in the ingredients you mentioned:

Sugar- has a stimulant effect on the brain. It should come from fresh fruits in moderate amounts and not as a highly concentrated processed additive.
corn syrup- is toxic to the liver, just like alcohol. modified whey-why modified? and what is the source?
cocoa (processed with alkali)-why processed.
hydrogenated coconut oil-why processed
marshmallows (sugar, corn syrup, modified corn starch, gelatin, artificial flavor),
nonfat dry milk-what is the source and why dry?
calcium carbonate
, less than 2% of: salt, dipotassium phosphate, mono- and diglycerides, artificial flavor, carrageenan-those are supposedly safe levels of synthetic materials that shouldn't enter your body at all. They are added because they fool your senses and make the product look and taste good.