thank you for asking in Meta. Overall I don't think your question is unsalvageable, however I felt that it needed more attention than it had been provided.
First of all, a huge red flag on any question is "my friend told me". Normally we want a question to be notable to a certain degree. On this particular topic, I think notability would be a requirement.
Then you limit it to Poland. Does chemistry or chicken biology work differently in Poland? I think that particular added detail could cause some confusion, and also make the question more difficult to answer.
What specifically is the claim in "presumably chicken are fed with hormones which can be unhealthy"? That chickens are fed with hormones? That this is unhealthy? That it's unhealthy to whom (people or the chickens)?
You then go on to state "as well as the meat could contain some added chemicals". What chemicals? Water is a chemical that is quite often added in food processing. Is that what you are concerned about?
Are you maybe asking about organic chicken farming?
Again, I think there is potential merit in this question, but in just three lines of text (on my screen), I was left with more questions as to what you were really skeptical about than anything.
Hope that helps.