Continuously, from 1960 to 1996, milk containing the micronutrients was distributed, free of charge, to consumers in the Cincinnati, Ohio area. Consumers were asked to complete and return survey forms to the company. This 35 year study, which documented over 8,000 case histories, has become known as the Ohio Survey.

The Ohio Survey is a landmark study of the safety and efficacy of milk micronutrients. We know of no other dietary supplement with such extensive documentation of use and effects. The intent of the Survey was to gather a large database of consumer usage to understand both the safety and benefits of daily consumption of the milk micronutrients. Data gathered from participants included basic background information on sex, age, weight, height, doctor's or subject's assessment of health status including any known ailments, and a general health history with documentation of any medications. Participants were asked to consume 45 grams of powder containing the special milk micronutrients which was typically reconstituted with water and consumed once daily as a beverage. Participants were asked to periodically complete survey forms to document their health status and any side effects.

During the first fifteen years of the survey, there were 3,545 documented case histories. The results showed that the product was well tolerated and, more importantly, that the users perceived significant health benefits. In the early 1990s the database was computerized.  During the last five years of the Survey, this allowed researchers to document another 4,867 consumer experiences with the supplement. The accompanying table shows the total number of participants, their reported conditions at the beginning of the survey and the percentage that reported improvement.

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As can be seen by the data, 73.5% of all consumers reported an improvement in their overall health.

The data gathered from the Ohio Survey was used to steer  the development of an extensive clinical research effort. These human trials, conducted by independent research organizations under controlled circumstances, confirmed many of the findings in the Ohio Survey.