20 Jan 2014 --- Products sweetened with aspartame are as popular as ever. Recent surveys conducted by Populus Research Ltd have found that in France, 73% of people aged 16 and over buy or use one or more products with aspartame. And in Great Britain, that figure rises to 87%. Populus Research Ltd interviewed a nationally representative sample of 1,000 people in each country. Participants were asked: "Which of these products do you buy or use nowadays?"