The herbs will basically do what the herbs will do. With juicing, your body is getting high nutrient juices (with virtually no energy-resources necessary to assimilate & process)...so your body would have all the energy it normally uses for digesting, processing and assimilating the raw foods to use for the cleanse PLUS all the extra fuel from the juices.
So, eating raw foods won't render the cleanse ineffective, but it's likely to be a much more effective cleanse if one does the juicing
Schulze suggests. We're asking our body to expend a LOT more energy when cleansing - I think it makes sense to give it all the extra fuel & energy we can :)
Healthiest of blessings,