We have many experience of effectiveness measurement surveys with diet products. If we recruit long-term participants for 1 to 6 months to try out diet products and conduct effectiveness measurements, it is important to confirm the following five points:
・Necessary to check in advance as we could not send anything other than domestically approved items.
・’Food allergies’ must always be checked in advance in the screener.
・When we take photographs to confirm weight measurements or changes in appearance, we need to obtain consent or agreement.
・Obtain consent for the “”long-term study”” to prevent dropouts during the fieldwork.
・Ensure in advance that participants can come to the measurement venue on the measurement date.
【Example】Conduct a one-month survey targeting women in their 20s to 30s weighing around 60 kg:
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・Select participants that meet the criteria and measure the data before using diet products
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・Period of diet product use (approximately 2 weeks)
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・Effectiveness measurement (first survey)
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・Period of diet product use (approximately 2 weeks)
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・Effectiveness measurement (second survey)
※ The above is just one of the example.
There will be various types of surveys related to dieting, including monitoring the use of diet equipment, monitoring exercise DVDs, and measuring effects by actual exercise, in addition to the use of diet products.