The LandMark Studies

The LandMark Studies


These studies comprise the first multi-study, comprehensive look at the health impacts of long-term usage of a broad array of dietary supplements.

The two studies, conducted in collaboration with the University of California Berkeley (2005) and, later, Tufts University (2015), compared long-term Shaklee adherents with a control group of US adults who took either no supplements or two or fewer supplements.

In the first study, members of the Shaklee group had healthier biomarkers and higher blood nutrient levels.* These differences generally persisted over the 10 years between the two studies.

The 10-year follow-up study included a lower usage of medication in the Shaklee group, who were now an average age of 72.



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