Sometimes it seems like a food or nutrition study that comes out today contradicts one that came out the day before. Consumers are confused about what to believe, and rightly so. But not all science is created equal. Find out how to look beyond the headline-grabbing claims and judge the science for yourself.

Food Safety Tip: Mind the Sneeze Guard!

He might be the most powerful man on Earth and ultimately responsible for America's food safety regulators, but even President Barack Obama can make a food safety faux pas.

As seen in the June 23 photo above, the president visited a restaurant where he leaned over the "sneeze guard" to choose toppings for his burrito, a fact the news media and Twitterverse were quick to point out.

According to Smithsonian Magazine, the sneeze guard was invented in 1959 by a germaphobe restaurateur named Johnny Garneau, which he dubbed a "Food Service Table" in the patent application. The device eventually became a nationwide legal mandate at all self-service food bars.

In addition to bodily emanations, sneeze guards can protect food from other threats like stray hairs. And presidents.