I need to take one of the Nestle tube feeding formulas to for slow small intestinal transit. I took the hydrogen breath test at Cedars-Sinai and the result was high methane. (I have SIBO).The doctor there recommended Vivonex Plus, but I'm wondering if Vivonex TEN would be better. Have any of you taken these formulas and how did they work for you? How long did the good effects last?