Retrieving custom field value with get_post?

Question

There's no mention of custom fields values in Get_post's codex page. Is it impossible to use get_post to get a custom field value of some post, and if so, is it necessary to perform a whole loop just for that?

Answer 1

All of the custom field functions accept the post id as a parameter. You can use all those functions directly without the need to actually retrieve the post itself.