It looks like some kind of vitamin supplement

The box contains about fifty packets of what look like chewable vitamins, except the packaging reads: WOW - ES Pills by MOG.

"Damn acronyms" thought Rachel, "what on earth do they all mean?"

Just then she hears footsteps on the stairs and her sister's voice calling out, "smells good Sis, what did you make me for breakfast?"

Quickly pocketing a pack of the pills and throwing the box in a cupboard by the door, Rachel runs back to the stove to finish off the eggs and bacon just as Crissy appears, wrapped in a big fluffy towel, using another to dry her hair.

"Awww thanks Sis!" Crissy slips her arm around her sister's waist and gives her a quick hug followed by a quick peck on the cheek. "You sure know how to look after your big sister don't you!"

Taking her plate over the kitchen table and tucking in Crissy looks over at her sister and asks "Did I hear the doorbell just now?"