Do you have any evidence of this or is this just your belief? I think, if it's just your belief, you should say that.

Do I have any evidence? As in have I performed studies on processed sugar and gathered evidence? No. I do not have evidence.

A quick web search will gladly provide evidence if you actually are interested.

Here’s a HN thread on an NPR article: https://news.ycombinator.com/item?id=26126183

Here’s a Canadian news agency article: https://www.cbc.ca/news/health/how-toxic-is-sugar-1.1894262

If you’re just going to knock everything off as “just your belief” then no amount of evidence will convince you.