Hydrolyzed collagen is a substance produced by breaking down collagen derived from animal bone and/or connective tissues. The collagen is broken down by means of a process called hydrolysis, which involves the decomposition of compounds by reaction with water molecules.
Ethnic groups in Italy. The major ethnic group in Italy is the Italians, who account for 95% (above 60 millions) of the total population of Italy. The remaining 5% of the population consists of ethnicities like Albanians, Romanians, Ukrainians and other Europeans (2.5%); Africans (1.5%) and several other minorities (1%). Italians.
Largest Cities in Italy. The three largest cities in Italy include Rome (2.8 million), Milan (1.3 million) and Naples (1 million), although Naples has experienced a population drop below 1 million in the last decade. Rome is Italy's capital and home to 2.8 million people in 1,285 square kilometers (496 square miles), which makes it the 4th most populous city in the European Union within city limits. Its urban area is home to up to 3.8 million, and the Rome metropolitan area has a population of 4.2 million.