For what trade goods were the Phoenicians known? For what else were they known?

They were known as great traders, the most famous ones in the Mediterranean. As they couldn't develop agriculture the products they traded the most were ivory, silver, slaves, cedar, purple clothes. They also developed  first alphabet, that influenced the creation of Greek alphabet.

Explanation:

Phoenicians established number of colonies across Mediterranean that allowed them to strengthen their trade connections. The most famous one was Carthage. They traded with Egypt, Crete and many other regions.

they protect against unsafe foods and medicines being sold

explanation:

answer; standardization;