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Portion size: Whole milk

Codes and Frequencies

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For sample adults who consumed whole milk in the past year, MILKWSIZ reports the portion size consumed each time the respondent drank whole milk or drinks made with whole milk. A medium portion was defined as 8 ounces. Respondents were instructed not to include milk on cereal. In 1987 and 1992 sample persons were asked about the frequency and portion sizes of different types of milk they consumed in the past year. To improve comparability, the frequency responses were recoded into a single variable that reports how many times the respondent consumed any type of milk, per year (MILKYR). For the type of milk most consumed, see MILKTYPE. MILKWSIZ corresponds only to the portion size of whole milk consumed, not other types of milk.

MILKWSIZ is part of a series of variables initiated in 1987 related to food, food knowledge, and cancer. For related variables, please use the IPUMS NHIS search function and drop-down menus.


Changes in survey design (e.g., quarters in which the supplement was collected) may affect raw frequencies, but do not affect comparability of the variable. As always, data users should use the prescribed IHIS weights.


  • 1987: Half of sample persons age 18+ (excluded from CACT supplement) who consumed whole milk during the past year.
  • 1992: Half of sample persons age 18+ in quarters 1 and 2 and 2 weeks in quarter 3 (excluded from CACT supplement) who consumed whole milk during the past year.


  • 1987, 1992