Is a 1-day recall period sufficient to capture diversity of diets?

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Yes, a 1-day recall is sufficient to capture diversity for groups of women. For any individual, it is normal for the diet to vary from day to day, so one day diversity may be very low, while it is very high the next day. However, when assessing dietary diversity for groups of women, these high and low diversity days for individuals balance each other, and the summary at the group level is accurate.

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