[15][22] In the early 1990s, health concerns prompted Nabisco to replace the lard in the crème filling with partially hydrogenated vegetable oil.

[24] Similarly, Oreo cookies are popular with people that have certain dietary restrictions, such as vegans, as the crème filling does not use any animal products.

"[30] This was followed during 2012 by a series of adverts commemorating other holidays and events, including a blue, white, and red crème Oreo to honor Bastille Day, a stream of cookie crumbs marking the appearance of the Delta Aquariids meteor shower, and a cookie with a jagged bite taken out of it to promote Shark Week on Discovery Channel.

[32] According to an April 2022 research report published in the journal Physics of Fluids, it was proven impossible to split the cream filling of an Oreo cookie down the middle.

Its packaging was redesigned into the more familiar British tube design, accompanied by a £4.5M television advertising campaign based around the "twist, lick, dunk" catchphrase.

[36] In a 2020 national poll the Oreo was ranked the 16th most popular biscuit in the UK, with McVitie's chocolate digestive topping the list.

Unlike the US version, the British Oreo originally contained whey powder, which was not suitable for people with lactose intolerance.

[47] The ingredients of Oreo cookies have remained largely unchanged from the original, although numerous alternative varieties and flavors have emerged over time.

Oreo cookies were made with lard until the mid-1990s, when Nabisco swapped the animal fat with partially hydrogenated vegetable oil.

The main varieties in the United States are: Special edition Double Stuf Oreo cookies are produced during springtime, and around Halloween and Christmas.

The 2017 Halloween Oreo broke with this tradition, having orange-colored crème filling (albeit with classic vanilla flavor) but carrying no seasonal designs.

In recent years, some limited editions have paired Oreos with other recognizable confectionery brands, including Reese's, Swedish Fish, and Peeps.

Oreo's six-person team in charge of special flavors is extremely secretive; the company will not disclose even the group's name.

[68] When the lights went out during Super Bowl XLVII in 2013, Oreo immediately parodied the event on social media with a "You Can Still Dunk in the Dark" post.

Every day, from June 25 to October 2, Oreo posted ads of their cookies transformed into something new to celebrate national holidays, pop culture milestone, and key moments in American history.

Using reinvented Oreo cookies, ads in the campaign honored the Mars rover landing, Elvis week, the invention of Pac-Man, and the release of The Dark Knight in theaters.

[75] In October 2020, Nabisco announced on social media that it had created a small concrete bunker in Svalbard, Norway to preserve the Oreo recipe in the event that the 2018 VP1 asteroid impacted the Earth on November 2 or 3, 2020.

The term "Oreo" has occasionally been used as a racial slur aimed at a person of mixed-race or African-American heritage who is accused of trying to act white.

[84] Former American president Barack Obama, due to his biracial heritage, has been compared to an Oreo by political pundits and television personalities such as John McLaughlin and Rush Limbaugh.

[88] In the 1976 movie, A Star Is Born, Barbra Streisand's character Esther Hoffman is the white central member of The Oreos, a three-girl singing group, between black actresses Venetta Fields and Clydie King.