She, along with co-star Susie Dent, has joined the #FoieGrasFreeGB launched by animal protection agency Animal Equality.
According to the organization, new figures reveal 79 percent of people in the UK support a foie gras import ban.
In addition, the online polling conducted by YouGov shows that 90 percent of people in the UK have not eaten foie gras in the last 12 months.
Almost a third - 29 percent - of respondents were still unaware of how foie gras is produced, and when respondents were informed or reminded about the process of producing foie gras, 37 percent said they would reduce or end their foie gras consumption.
Riley and Dent have spoken out about foie gras letting people know about the force-feeding process behind the product, which causes the livers of ducks and geese to swell to 10 times the normal size in just a few weeks.
Riley said: "I'm a massive animal lover, so I think it's brilliant that it's illegal to produce foie gras in the UK. I think it's not so brilliant that you can still import it – so I support Animal Equality's petition to have a foie gras-free GB."
Dent added: "If you eat foie gras, I would really urge you to look at the practice that goes in to producing it. It is totally barbaric and involves force-feeding on the most horrific scale imaginable."