What we eat, especially foods that contain chemical additives and ultra-processed foods, affects our gut environment and increases our risk of diseases. Ultra-processed foods contain substances extracted from food (such as sugar and starch), added from food constituents (hydrogenated fats), or made in a laboratory (flavour enhancers, food colourings). It’s important to know that ultra-processed foods such as fast foods are manufactured to be extra tasty by the use of such ingredients or additives, and are cost effective to the consumer. These foods are very common in the typical Western diet. Some examples of processed foods are canned foods, sugar-coated dried fruits, and salted meat products. Some examples of ultra-processed foods are soda, sugary or savoury packaged snack foods, packaged breads, buns and pastries, fish or chicken nuggets, and instant noodle soups.
Researchers recommend “fixing the food first” (in other words, what we eat) before trying gut modifying-therapies (probiotics, prebiotics) to improve how we feel. They suggest eating whole foods and avoiding processed and ultra-processed foods that we know cause inflammation and disease.