Some of you got the answer, and some were very close!
There are many suspicious, potentially harmful or questionable ingredients listed in the 34 additives in this product. Then there's the GMO (Genetically Modified Organisms) it contains: wheat, corn, soy, and in multiple forms. These GMO grains are often laced with the Roundup/Glyphosate herbicide, which causes further health effects. Many other ingredients are known to cause inflammation in many people, and its inflammation which is a causative factor for many of our modern disease epidemics of heart disease, obesity, diabetes and cancer.
The Big Mac also has the following nutritional info:
Calories: 540 (over ¼ of your daily suggested amount of 2000 calories)
As I've said before, know what you are eating! Use a free food additives app for your smartphone which you can look up the additives to find out what they are and what health effects they may cause.
The huge number of additives and chemicals should be a deterrent to eating this very highly processed product, as I can't really call it a "food". It's ironic that all of the added preservatives and chemicals will give the products a longer life, but have the opposite effect on your health! Or looking at it a different way - if fast food is meant to be produced and eaten within a short space of time, why are all the preservatives needed?!
There are many better foods which CAN help to give you a longer life: whole, fresh real foods, not this processed junk!