Diet Pepsi
A bottle of Diet Pepsi from America (2025) | |
| Product type | Diet cola |
|---|---|
| Owner | PepsiCo |
| Country | United States |
| Introduced | December 28, 1964 |
| Related brands | Pepsi One Pepsi Max Coca-Cola Zero Sugar Diet Coke |
| Website | pepsi.com/dietpepsi |
Diet Pepsi, also called Pepsi Light in some countries, is a carbonated cola soft drink produced by PepsiCo. It is an alternative to Pepsi, containing no sugar, instead using artificial sweeteners (primarily aspartame). First test marketed in 1963 under the name Patio Diet Cola, it was re-branded as Diet Pepsi the following year, becoming the first diet cola to be distributed on a national scale in the United States before expanding internationally. In addition to Diet Pepsi, PepsiCo also produces the low-calorie cola Pepsi Zero Sugar, also called Pepsi Max in some areas, which was developed after Diet Pepsi.