So basically the inability to absorb fats, lipids and protein. So diarrhea, watery stool. The question is why? Why is it that if an individual has this condition we call a Hypo lactasia, so basically they're intolerant to lactose, and if they actually ingest the lactose, there will be a build up of the lactose. But why is that build up? Or why does the build up actually lead to these problems?