You should not do anything because of what I told you. It is important you first use the information for you to collect information so that you you are convinced - and you have articles, photos and videos to show.
If you go ahead just on what I told you, there will be, in the back of your mind, the worry that maybe I was not fully honest.
If you want, let me know what you find (giving me links) and then I can help you find more data.
Once you are ready, that is the time for you to worry about how to go ahead.
You will have a problem I do not have (I think). If a number of your friends or neighbours work at Nestle, they will get angry with you. If this is true you'll have to find a different way to fight - if you still want
RE: Nestle