I think you should go learn history to understand when we started agriculture.
And even so how starch and simpler sugars played in our diets for the past 150,000 years.
The fruits that primates eat are "processed" they let them ferment this is one of the reasons why like alcohol so much because amongst other things we used it to tell us when the fruit is ready to eat and it's at it's highest caloric value.
We have been refining sugar for about 10,000 years if not longer, we have been using fermentation and other processes to process complex carbs into sugars for even longer.
And even so how starch and simpler sugars played in our diets for the past 150,000 years.
The fruits that primates eat are "processed" they let them ferment this is one of the reasons why like alcohol so much because amongst other things we used it to tell us when the fruit is ready to eat and it's at it's highest caloric value.
We have been refining sugar for about 10,000 years if not longer, we have been using fermentation and other processes to process complex carbs into sugars for even longer.