What Happens to Your Body When You Eat a Big Mac?

Fast Food Menu Price created a breakdown of Big Mac ingredients and their effects in your body. Here’s a look at what happens to your body within one hour of eating the iconic sandwich.

(Pro-tip; it’s not healthy. It raises your blood sugar, makes you dehydrated, and makes you hungry again within 40 minutes.)


After 10 minutes: The Big Mac raises your blood sugar and triggers your brain’s reward system by releasing dopamine.

After 20 minutes: The high levels of fructose corn syrup and sodium from the bun have begun to make your body crave more McDonald’s.

After 30 minutes: 970 milligrams of sodium later and your body starts to become slightly dehydrated. Your kidneys try to flush the salt, and your heart works faster to pump blood through your veins.

After 40 minutes: You’re hungry once more; the high calorie meal causes your body’s insulin to bring down your glucose levels, which make you want to eat again.

After 60 minutes: Digestion. However, the body typically takes 24-72 hours to digest a meal. The Big Mac can take closer to three full days.

Not many would argue that the Big Mac was ever a healthy meal option, but this info-graphic goes along way to show you how fast foods can effect your body. Like all junk food, McDonald’s is not good for you. Try your best not to eat a Big Mac everyday, but don’t sweat it if you scarf one day every-so-often.

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