Science is slow for a reason: it takes time to connect the dots of what is true vs speculation vs error vs lie. Here is a very useful summary of the science of recent decades. Yet another great site for information on why some of people struggle with sugar, and food in general.
https://foodaddictioninstitute.org/about/summary-of-work-to-date/
For latest information: https://foodaddictioninstitute.org/scientific-research/new-research/
Sugaraholics 