Psyllium Husk
Product
Daily fiber and glycemic control
"There are a lot of heavy metals and contaminants in most common brands of psyllium husks. So Yerba Prima or Organic India are two that I have looked at testing results for, and those are good."
More source quotes
Supplementing dietary fiber intake to improve post-meal comfort and gut health
"Recently, I started supplementing with a powdered psyllium husk, and some of them actually taste pretty good. My expectation was I was going to feel really bloated. It was quite the opposite. It made post-meal — subjectively the sensation — just feel good, ..."