A study published in the American Journal of nutrition in 2015
showed that cutting back on sugar may make foods taste sweeter than they do when you eat a more sugary diet.
A group of people were given a low-sugar diet which replaced 40% of their sugars with protein. After 3 months the low-sugar group rated vanilla puddings and raspberry beverages as tasting sweeter than usual compared to the group of people in the study that had a high sugar diet.
My suggestion is to cut back on processed foods that are high in sugar. Look for “OSE” at the end of the ingredient. Example: Sucrose, Fructose.