What other information is there on food packaging? what are they for?

Date of manufacture and expiration date – to avoid poisoning. Composition – for those who have allergies and for marketing (suddenly someone does not know where the emphasis is placed) “eco” products. Energy value – to comply with the daily intake of substances. Manufacturer and legal entity address – so that if manufacturers forget any of the above, buyers or the prosecutor’s office will remind them. Well, mass or volume is quantity. there is still a percentage of fat on milk – for the buyer, this is the thickness of a particular product.