Humans lose much of their ability to break down certain sugars as we mature into adults or experience intestinal infections. Many people malabsorb lactose and fructose, to some degree we all probably do. This unabsorbed sugar becomes food for opportunistic bacteria.
Eliminating sugar from the diet is very important for gut health, especially when trying to get rid of SIBO and intestinal candida overgrowth. However, using Splenda (the artificial sweetener sucralose) is almost guaranteed to take make matters worse. The use of Splenda can significantly alter the gut’s microbiota, both negatively impacting beneficial bacteria and causing an increase in pathogenic bacteria. It also increases the pH of the colon which is known to lead to disease from pathogenic overgrowth.