What ten questions do people ask if an advertisement on a food package claims that it has some kind of vitamin in it?

When people see a food package claiming it contains a certain vitamin, they often ask: What specific vitamin is included? How much of the vitamin does the product contain? Is this amount sufficient to meet daily recommendations? Are there any potential side effects or interactions with other nutrients? Additionally, they may inquire about the source of the vitamin, whether it is synthetic or natural, and if the product is suitable for specific dietary needs or restrictions.