Doritos

Doritos is a brand of seasoned tortilla chips owned by the American company Frito-Lays and originating in America. Originally made in 1964, it was eventually sold nation-wide in 1966. It was eventually sold internationally, with the Japanese getting their version in 1987 alongside 20 flavors, including Fish Taco by the 2000s.

Relation to the Metal Gear series
Series creator Hideo Kojima included in the Japanese release of Metal Gear Solid: Peace Walker the Fish Taco-flavored Doritos chips, alongside products from Axe Body Spray, Mountain Dew, Pepsi, Bon Curry, and magazines from Weekly Famitsu, Dengeki PlayStation, Dengeki Games, and Shonen Jump as a joke on product placement. Most of these were removed from the final release. The item description mentions their national distribution release date in America, while the Model Viewer description for the item references the brand's Japanese release date.