Images show a 6-year-old McDonald's Happy Meal

Shocking images of a 6-year-old McDonald’s Happy Meal that changed little are creating a buzz on social media.

Alaskan mom Jennifer Lovdahl posted photos of the meal--including four chicken nuggets and a small order of slightly shriveled french fries-- along with a receipt dated January 8, 2010 to Facebook.

(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); = id; js.src = "//"; fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));

"It has not rotted, moulded, or decomposed at all!!! It smells only of cardboard. We did this experiment to show our patients how unhealthy this "food" is. Especially for our growing children!! There are so many chemicals in this food! Choose real food! Apples, bananas, carrots, celery.those are real fast food."

Lovdahl’s post has been shared more than 230,000 times.

Although it had not been confirmed that the image is real, it’s not the first time someone has claimed McDonald's hamburgers didn’t rot. Last year, an Icelandic man shared images of a McDonald’s hamburger and fries he bought Oct. 31, 2009.

In most of these cases, preservatives and high levels of sodium were blamed for its freakish perservation.

McDonald's USA offers another explanation.

In the right environment, our burgers, fries and other menu items could decompose. The reason our food may appear not to decompose comes down to a matter of simple science. In order for decomposition to occur, you need certain conditions – specifically moisture. Without sufficient moisture – either in the food itself or the environment – bacteria and mold may not grow and therefore, decomposition is unlikely. So if food is or becomes dry enough, it is unlikely to grow mold or bacteria or decompose. Food prepared at home that is left to dehydrate could see similar results. Look closely, the burgers you are seeing are likely dried out and dehydrated, and by no means "the same as the day they were purchased."