According to McDonald's website, its ketchup is made out of tomato concentrate from red ripe tomatoes, distilled vinegar, high fructose corn syrup, corn syrup, water, salt, and natural flavors.

Source: https://www.dailymail.co.uk/femail/article-12483075/McDonalds-chef-ketchup-tastes-different-ingredients.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

The authors suggested probable causes included sugar and fructose in soft drinks.

Source: https://www.dailymail.co.uk/health/article-11616135/Why-gout-pill-cut-high-blood-pressure-boost-sex-life.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

Tom Brady’s diet also limits: GMOs, high fructose corn syrup, soy-containing foods, and most cooking cooking oils, such as canola and soy.

Source: https://stylecaster.com/tom-brady-diet/