I have a node that has a few field collections on it.
When I look at
node_load() output, I see:
[field_rich_text_group] => Array ( [und] => Array (  => Array ( [value] => 6 )  => Array ( [value] => 7 )  => Array ( [value] => 8 ) ) )
What API function can I use to actually load the field data contained in the collection that has an entity_id of 6, 7, 8, etc?