The Queen Has A Hand Washer And Obama Has A Food Taster

It's good to be the king.
From the Washington Examiner: Other fun facts: Presidents rarely enter a hotel through the lobby, opting instead for the loading dock. And when President Obama travels, his food is sampled by a Navy officer before he eats it for security reasons.  http://washingtonexaminer.com/how-the-president-gets-around/article/2509247#.UGaic648VXs
This is just stupid.  First, unless it is a fast acting poison like cyanide, even if you taste the food, you may not get immediately sick.  And if the Secret Service is so worried about the President's food, then have someone in the kitchen to watch the cook or if they are that paranoid about the poisoning the President's food, then bring food from the White House and throw it into the microwave or oven or give the guy a MRE.
As Mel Brooks says: