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Content: "Improving defenses (product containing L. casei) and improved intestinal transit (product containing B. lactis)." The review panel assessed the strength of evidence with a grading classification of grade 1 for the strongest and Grade 5 for the weakest. What they found was interesting...
The research team identified 440 studies involving the two probiotics but only 16 met the inclusion criteria of systematic review. At the time of the review, Dannon's website cited 47 of those studies but only 12 met the reviews inclusion criteria. Furthermore, only 7 out of the 12 studies "demonstrated some positive effect following consumption of milk products enriched with probiotic strains''. From these 7 studies, 3 were based on the probiotic strain L.casei. The L.casei studies were graded as a level 5 "because they were based on circumstantial evidence and opinion, and none showed clinical effects in support of the health claims made". The remaining 4 clinical studies were based on the B.lactis strain and each were graded with a level 1 classification as they provided valid scientific evidence that B.Lactis decreased intestinal transit time
Another interesting discovery was that 7 out of the 16 studies that met the inclusion criteria of the review were sponsored by Dannon. The systematic review concluded that large multi-national companies such as Dannon are using health claims based on scientific evidence that is insufficient. What's more, the scientific evidence comes from clinical studies sponsored by the company, meaning the favorable results may not be unbiased
Dannon Health Claims Fall Foul of FTC
In 2009 the FTC brought charges against Dannon accusing them of making exaggerated health claims about their Activia yogurt.