For most adults, it is difficult to get adequate nutrients if eating less than kcals a day.

2,000 kcals.

A mathematically simple 2,000 calorie-a-day diet was chosen so that consumers could easily calculate the daily values needed for their own diets. This is the amount of total calories per day that a moderately active adult female (weighing approximately 132 lbs) would need to maintain her weight.

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