Okay, here’s my story about figuring out the ingredients in Pepsi Zero.
So, I got really curious about what’s actually in Pepsi Zero. I mean, it tastes sweet, but it says zero sugar, so what’s the deal? I decided to do some digging and see what I could find out.

First, I grabbed a can of Pepsi Zero from my fridge and took a close look at the label. I saw a bunch of ingredients listed, but some of them sounded like a chemistry experiment. I knew I needed more info.
I jumped online and started searching. I found a few articles talking about the differences between Diet Pepsi and Pepsi Zero. It seemed like they’re pretty similar, but not exactly the same. Some sources mentioned that both have carbonated water, caramel color, and aspartame. That made sense, but I wanted to know the specifics for Pepsi Zero.
I dug a bit deeper and found an article that listed the ingredients specifically for Pepsi Zero Sugar. It said the main ingredients are carbonated water, caramel color, phosphoric acid, aspartame, potassium benzoate, and caffeine. Okay, now we’re getting somewhere!
I noticed that potassium benzoate is used to preserve freshness. That’s good to know. I also saw that aspartame is the artificial sweetener that gives it that sweet taste without the sugar. Phosphoric acid, I guessed, is what gives it that tangy bite.
- Carbonated water: This is just fizzy water, nothing special there.
- Caramel color: This gives it that classic dark brown color.
- Aspartame: This is the artificial sweetener that makes it sweet.
- Phosphoric acid: This probably adds to the tangy flavor.
- Potassium benzoate: This is a preservative to keep it fresh.
- Caffeine: This is that kick many of us are so used to.
After all this searching, I felt like I had a pretty good handle on what’s inside a can of Pepsi Zero. It wasn’t so mysterious anymore. It’s basically a mix of carbonated water, some coloring, artificial sweetener, a bit of tang, a preservative, and a caffeine boost.
But one thing that I did notice was this line that read “Nutrition information for custom cup sizes and ice amounts are approximate values based on FDA rounding rules. Actual nutritional values will vary based on cup fill level.” That’s interesting I thought. So the exact values will differ based on the amount of ice used. Good to know.
I learned something new today, and I thought I’d share it with you all. It’s always fun to satisfy these little curiosities, right? Cheers!
