<<Disclaimer:  Verify this information before applying it to your situation.>>

Will is 3yrs old & has been Diagnosed for about 4 months
with symptoms since birth and suspicions of CD since about
20 months old. His Diarrhea is usually filled with more
whole foods when it is a Gluten result and has a tendency to
burn his bottom quicker than a viral diarrhea.

His pediatrician always tests his blood to verify the cause
which helps to rule out the gluten reaction.  He will not
give him an antibiotic unless it is an infection since the
antibiotics tend to increase his diarrhea problems.

I hope this has been of some help to you.

If you discover any other way of determining the difference
let me know!

Thanks,             Peggy