These Are the , 6, Most Popular Cuisines in the World. 'Eat This, Not That!' reports that a recent study by Radical Storage analyzed Tripadvisor data from the 50 most-visited cities in the world. 500,000 restaurants were examined to determine which types of food have become most popular worldwide. After finding the most popular restaurants across various cities, it ranked these six cuisines as the world's most popular. 6. , Chinese. 6. , Chinese. 5. , Spanish. 5. , Spanish. 4. , American. 4. , American. 3. , Japanese. 3. , Japanese. 2. , Mediterranean. 2. , Mediterranean. 1. , Italian. 1. , Italian