Probiotics can be approved for sale in Canada as natural health products or as foods.
Many foods that contain probiotics may be not effective or have not been studied for the prevention of CDAD and AAD.
As such, there are no foods containing probiotics that have approved health claims for these indications; however, some non-strain specific claims may be permitted including:
- Probiotic that naturally forms part of the gut flora
- Provides live microorganisms that naturally form part of the gut flora
- Probiotic that contributes to healthy gut flora
- Provides live microorganisms that contribute to healthy gut flora
Foods containing probiotics, such as yogurt, generally do not contain the minimum of 10 Billion CFUs required for the prevention of CDAD and AAD.
Further, the ability of food sources, such as yogurt, to deliver bacteria to the gut has not been assessed in clinical studies and is unknown.
It should be noted, however, that some fermented milk beverages (not considered yogurt) with added probiotics can deliver bacteria to the gut.13
Clinical studies have shown that some fermented milk beverages are effective for the prevention of AAD and/or CDAD, specifically the combinations of
- L. acidophilus CL1285, L. casei LBC80R and L. rhamnosus CLR2 proprietary formulation (Bio-K+)5
- L. casei, L. bulgaricus, and S. thermophilus (Actimel – Not available in Canada)16
- Lactobacillus casei sp. Paracasei CNCM I-1518 (DanActive)16