What Happens to Your Body After Eating A Big Mac?

Big Mac’s are one of the most popular selling fast food products of all time. There’s no doubt that 90% of people reading this article will have had at least one Big Mac in their lifetime.

Am I right?

But how many people stop to actually think about the ingredients inside a Big Mac? And the effects one has on your body?

FastFoodMenuPrice.com put together this great infographic, which highlights all the effects taking place after one hour of eating a Big Mac.

This’ll probably make you think twice about heading to McDonald’s again!


What Happens One Hour After Eating A Big Mac? [Infographic]

What Happens to Your Body After Eating A Big Mac [Infographic]

The Effects of One Big Mac on our Body

As you can see from the infographic, a single Big Mac can have a lot of negative effects on our body. Here’s a clearer explanation of the information that’s been shown in the image above:


10 Minutes: Our Brains Prefer High-Calorie Foods

Our brains evolved during a time when food was scarce, so we became adept at choosing high calorie foods. A regular Big Mac contains 540 calories and raises your blood sugar levels to abnormally large heights.

Junk food triggers your brain’s reward system by releasing much more ‘feel good’ chemicals. Such as the neurotransmitter dopamine, which ignites feelings of pleasure.

The process works in a similar way to the likes of drugs like cocaine, and contributes to the likelihood of compulsive eating.


20 Minutes: Addictive Sugars

Did you know that a Big Mac bun has high levels of fructose corn syrup and sodium?

Both ingredients are addictive and make your body crave for more. These are also harmful ingredients which can cause obesity, diabetes and heart disease.


30 Minutes: Sodium Attack on Your Body

A Big Mac consists of 970mg of sodium. The recommended maximum intake of sodium is 2000mg a day. This is the amount the body can safely handle.

This huge amount of salt can spur dehydration. With symptoms that closely mimic that of hunger, it’s easy for dehydration to trick you into thinking you need to go back for a new round.

Too much intake of sodium makes it harder for your kidneys to eliminate salt. This aggravates the situation; the sodium overdose makes your heart work faster in order to pump blood through your veins.

This causes high blood pressure and can ultimately lead to heart disease and strokes.


40 Minutes: Craving for More!

Are you still feeling hungry after just having a Big Mac? This is because you have lost control over your blood sugar, making you crave even more for fast food.

The first time you consume a high calorie meal, your insulin response can bring down your glucose levels, making you want to eat more. The high fructose corn syrup is the Big Mac bun is quickly absorbed by the GI tract, causing insulin spikes and even bigger hunger pains.


60 Minutes: Slow Digestion

Normally the body takes about 24 to 72 hours to digest food. However, hamburgers take longer to digest because they are greasier. After consuming a Big Mac, it can take more than 3 days to fully digest.

It takes approximately 51 days to digest trans fats. The Big Mac contains 1.5 grams of trans fat. Different studies have proven that trans fats are linked to heart diseases, obesity, diabetes and cancer.

If you want to eat a Big Mac, try to keep it to an occasional event. The ingredients can cause serious harm to your body, especially when consuming them on a regular basis.



These infographics always make people re-think the amount of junk food they’re consuming. Imagine if you’re eating one of these Big Mac’s a week… the trans fats would never be digested.

Here’s a quick low down on what happens one hour after eating a Big Mac:

  • 10 minutes – Our brains prefer high-calorie foods
  • 20 minutes – Addictive sugars!
  • 30 minutes – Sodium attack on your body
  • 40 minutes – Craving for more!
  • 60 minutes – Slow digestion
  • How often do you eat Big Mac’s? Has this put you off them? Leave a comment below.

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