Is too much decaf coffee BAD for you, and if so, how and why?

Decaf coffee contains less of many things, not just caffeine.
In many methods of removing the caffeine, antioxidants are also lowered.

Decaf coffee also has been shown to increase the LDL cholesterol... that's the harmful cholesterol.

Often times, some of the solvents used to reduce the caffeine remain on the beans. They may harm the consumer. Then again, .maybe you enjoy sipping paint thinner. (Methylene chloride)

By the way, too much of just about anything, can be dangerous and bad for a person.

The solvent used is CO2. What is the source for your other claims?

There are several different chemicals which can be used to leach out the caffeine.



It's called the inetrnet.

Just enter "decaffeinated coffee health risks" in the search engine of your choice.

How Much Coffee Is Too Much Coffee? Science Has No Clue
https://www.cracked.com/article_26583_how-much-coffee-too-much-coffee-science-has-no-clue.html

These things I am asking here I believe are best reserved for a nutritionist.