Anyone tried Inulin for constipation

Hi Everyone,

I have IBS with constipation and after returning from a 3 week vacation with different foods and unable to exercise like normal, my bowels are totally quiet and not working. I've tried everything over the years but recently found out about Inulin which is a Prebiotic. Has anyone tried this product and found that it works for constipation. It is a fiber source that they put in Probiotic formulas, which don't seem to be helping me either right now. But I found that you can buy it as a powder and add it to yogurt and cereals.

Thanks