Can this product cause soft bowels?

It is very rare but possible. The reason…

For some people when they introduce fiberous foods into their system they get initial diarrhea or loose bowels. Hoodia is a plant and thus is fiberous. Perhaps your current diet is not high in fiber so it shocked your system. You can try it again in the afternoon with some food in your system. See if it reacts better.

As with any food some individuals react different and if it continues it might not be for you. However I would say to continue to follow the ice cube diet plan.