I load an Article node with node_load() and I'd like to get the summary for the Body field. I know that I can access it with $node->body[$node->language][0]['summary'] but unless the user explicitly adds a Summary Body, then this field is empty.

I know that drupal will automatically generate a "trimmed body" if they don't add a Summary Body. How can I access that trimmed body?

I load an Article node with node_load() and I'd like to get the summary for the Body field. I know that I can access it with $node->body[$node->language][0]['summary'] but unless the user explicitly adds a Summary Body, then this field is empty.

I know that drupal will automatically generate a "trimmed body" if they don't add a Summary Body. How can I access that trimmed body?

EDIT:

I'm not interesting in render()ing the content, I just want the text. My module is generating a json feed for an external source.