By Jose Serrano (staff@latinospost.com) | First Posted: Sep 24, 2015 02:34 PM EDT

McDonald's has done everything it can over this year to change the greasy, gluttonous images people often get when driving by - or through - the Golden Arches.

The 67-year-old burger joint can't seem to stop falling sales. They've introduced health-conscious meals; switched to cage-free eggs; limited fat and calories in Happy Meals; even planned long-awaited all-day breakfast menus, yet profits are coming in at fractions of what they were a decade ago.

Now come an infographic that may explain why McDonald's is having such a hard time swaying public opinion.

Website Fast Food Menu Price has broken down what a Big Mac - McDonalds' signature burger for as long as it's been around - does to the human body within an hour of consumption.

Everything fitness and health experts preach is true: the triple-deck burger does nothing more than add unnecessary amounts of sodium, dehydrate you, and pack on empty calories. And that's before you get hungry again 40 minutes later.

The infographic breaks the digestion process down into 10-minute intervals, with the exception of the 60-minute mark when your body begins a three-day process of breaking it down. While they don't cite medical evidence, the authors say trans fats in a Big Mac can take up to 51 days to fully digest.

They advise diners to chomp on Big Macs occasionally instead of daily, citing studies that have linked trans fats to heart disease, obesity, and cancer.

"The ingredients can cause serious harm to your body," the infographic concludes, "especially when consuming them on a regular basis."

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