The company analysed the frequency of food and drink related hashtags on the social media site to come up with the most talked about foods.
At the top of the listwas #fish with 8,500 tags, followed by #pasta with 5,400 tags, the #salad (4,400), #pizza (3,200) and lastly #toast with 1,900 tags.
When it came to drinks, cocktails topped the list with Martini, Tequilla Sunrise and Mojito being on top in Portugal.
The research found that in Portugal, fish, salads, pastas and pizzas have similar results to Spain, where paella, ham and gourmet dishes are also highlighted. In drinks, Martini, Tequila Sunrise and Mojito coincide with the trends in Portugal, with gin and tonic and sangria still standing out for Spain.
In Italy, the trends remains in line with Portugal in fish, salads, pizza and pasta, but in Italy ice cream makes it into the top tier.
The study was conducted by Radarly Search and took into account results from Portugal, Spain, Italy, France, the Netherlands, Belgium and Switzerland.