LOL. This is awesome.
Fertilizers = nutrients.
Nutrients help to fertilize plants by adding new vitamins, minerals, and a whole bunch of other things that I don't understand or care to understand.
It's not a bad question to ask. After all, so many companies try to make their products sound better by changing the names of them so that that they sound snazzy or better. Most of them are the same things - and we all have our favorite nutrient companies, well, most of us. But when all is said and done, most of the products just have the same ingredients in them and are named differently or contain different amounts.
That's just the way it is.
Finding this out now is going to help you realize that not everything you read can be trusted - question everything. Great, now I feel like the X-Files. "The truth is out there." LOL
I need more coffee, I think.