Other ingredients in Metamucil can include:
Maltodextrin
Citric acid
Aspartame (in some varieties)
Stevia (in some varieties)
Natural and artificial flavors
FD&C Yellow 6 (in some varieties)
there are many pure psyllium husk powder supplements without additional additives, both bulk and capsules ...
What about dextrin?
And which source ?
Corn or wheat or
Do I need to worry about hybtid crop sources of dextrin