Because most health experts agree that probiotics are more effective when taken in their natural source, Primal Defense contains fermented whole foods. The process that is used by Garden of Life allows the supplement to keep all of the nutrients that are needed for it to do work properly. The body will absorb everything that it has to offer.
When comparing Primal Defense to isolated probiotics, the competition is over just about as soon as it starts. Isolated probiotics do not contain whole foods and are not nearly as effective in promoting a healthy intestinal tract. There is also the fact that they must usually be refrigerated, which can be an inconvenience for many people and a simple mental mistake can lead to a wasted product.