https://www.diabetesdaily.com/blog/2014/09/white-sugar-vs-fruit-sugar-theres-a-big-difference/
and thats the tip of it.
Theres a number of papers in place correlating a link between consuming lots of refined sugars and certain types of cancers as well – although everything causes cancer now – but more worrying the data points to increased heart disease and artery clogging – more so than some fats that are being blamed for the above.
*sources = science of ultra podcast – have a listen they mention the papers on there. I dont have my phone with me to point out the podcast numbers but they do one on heart health , one on fat consumptions and one on fueling during ultra