| DBD100 | How often {do you/does SP} add ordinary salt to {your/his/her/SP's} food at the table? Would you say . . . | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DBQ095 | What type of salt {do you/does SP} usually add to {your/his/her/SP's} food at the table? Would you say . . . | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRALANG | The SP/Proxy spoke mostly: | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD300 | Was the amount of food that {you/NAME} ate yesterday much more than usual, usual, or much less than usual? | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD320GW | Total plain water drank yesterday - including plain tap water, water from a drinking fountain, water from a water cooler, bottled water, and spring water. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD330GW | Total tap water drank yesterday - including filtered tap water and water from a drinking fountain. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD340 | Please look at this list of shellfish. During the past 30 days did you eat any types of shellfish listed on this card? Include any foods that had shellfish in them such as sandwiches, soups, or salads. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350A | Clams eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350AQ | Number of times clams were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350B | Crabs eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350BQ | Number of times crab was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350C | Crayfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350CQ | Number of times crayfish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350D | Lobsters eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350DQ | Number of times lobster was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350E | Mussels eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350EQ | Number of times mussels were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350F | Oysters eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350FQ | Number of times oysters were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350G | Scallops eaten during the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350GQ | Number of times scallops were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350H | Shrimp eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350HQ | Number of times shrimp was eaten in the last 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350I | Other shellfish ( ex. octopus, squid) eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350IQ | Number of times other shellfish (ex. octopus, squid) was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350J | Other unknown shellfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350JQ | Number of times other unknown shellfish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD350K | Refused to give detailed information on shellfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD360 | Please look at this list of fish. During the past 30 days did you eat any types of fish listed on this card? Include any foods that had fish in them such as sandwiches, soups, or salads. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370A | Breaded fish products eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370AQ | Number of times breaded fish products were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370B | Tuna eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370BQ | Number of times tuna was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370C | Bass eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370CQ | Number of times bass was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370D | Catfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370DQ | Number of times catfish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370E | Cod eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370EQ | Number of times cod was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370F | Flatfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370FQ | Number of times flatfish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370G | Haddock eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370GQ | Number of times haddock was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370H | Mackerel eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370HQ | Number of times mackerel was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370I | Perch eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370IQ | Number of times perch was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370J | Pike eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370JQ | Number of times pike was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370K | Pollock eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370KQ | Number of times pollock was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370L | Porgy eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370LQ | Number of times porgy was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370M | Salmon eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370MQ | Number of times salmon was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370N | Sardines eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370NQ | Number of times sardines were eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370O | Sea bass eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370OQ | Number of times sea bass was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370P | Shark eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370PQ | Number of times shark was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370Q | Swordfish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370QQ | Number of times swordfish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370R | Trout eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370RQ | Number of times trout was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370S | Walleye eaten during the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370SQ | Number of times walleye was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370T | Other type of fish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370TQ | Number of times other type of fish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370U | Other unknown type eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370UQ | Number of times other unknown type of fish was eaten in the past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRD370V | Refused to give detailed information on fish eaten during past 30 days | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDCWATR | Plain carbonated water drank yesterday - including unsweetened carbonated water, seltzer water, club soda, and carbonated bottled water such as Perrier. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDDAY | Intake day of the week | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDDRSTZ | Dietary recall status | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDEXMER | Interviewer ID code | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDRESP | Who was the main respondent for the interview? | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRDTSODI | Sodium (mg) (adjusted for salt use in food preparation) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTACAR | Alpha-carotene (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTALCO | Alcohol (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTATOC | Vitamin E as alpha-tocopherol (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTBCAR | Beta-carotene (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCAFF | Caffeine (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCALC | Calcium (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCARB | Carbohydrate (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCHOL | Cholesterol (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCOPP | Copper (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTCRYP | Beta-cryptoxanthin (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTFA | Folic acid (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTFDFE | Folate as dietary folate equivalents (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTFF | Food folate (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTFIBE | Dietary fiber (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTFOLA | Total Folate (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTIRON | Iron (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTKCAL | Energy (kcal) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTLYCO | Lycopene (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTLZ | Lutein + zeaxanthin (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTM161 | MFA 16:1 (Hexadecenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTM181 | MFA 18:1 (Octadecenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTM201 | MFA 20:1 (Eicosenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTM221 | MFA 22:1 (Docosenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTMAGN | Magnesium (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTMFAT | Total monounsaturated fatty acids (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTMOIS | Moisture (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTNIAC | Niacin (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTNUMF | Total number of foods reported in the individual foods file | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP182 | PFA 18:2 (Octadecadienoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP183 | PFA 18:3 (Octadecatrienoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP184 | PFA 18:4 (Octadecatetraenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP204 | PFA 20:4 (Eicosatetraenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP205 | PFA 20:5 (Eicosapentaenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP225 | PFA 22:5 (Docosapentaenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTP226 | PFA 22:6 (Docosahexaenoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTPFAT | Total polyunsaturated fatty acids (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTPHOS | Phosphorus (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTPOTA | Potassium (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTPROT | Protein (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTRET | Retinol (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS040 | SFA 4:0 (Butanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS060 | SFA 6:0 (Hexanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS080 | SFA 8:0 (Octanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS100 | SFA 10:0 (Decanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS120 | SFA 12:0 (Dodecanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS140 | SFA 14:0 (Tetradecanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS160 | SFA 16:0 (Hexadecanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTS180 | SFA 18:0 (Octadecanoic) (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTSELE | Selenium (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTSFAT | Total saturated fatty acids (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTSUGR | Total sugars (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTTFAT | Total fat (gm) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTTHEO | Theobromine (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVARA | Vitamin A as retinol activity equivalents (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVB1 | Thiamin (Vitamin B1) (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVB12 | Vitamin B12 (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVB2 | Riboflavin (Vitamin B2) (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVB6 | Vitamin B6 (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVC | Vitamin C (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTVK | Vitamin K (mcg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRXTZINC | Zinc (mg) | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| SEQN | Respondent sequence number. | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| WTDR4YR | Dietary day one 4-Year sample weight - Used for 1999-2002 data collection years only | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| WTDRD1 | Dietary day one 2-Year sample weight - Used for 2001-2002 data collection years only | DRXTOT_B | Dietary Interview - Total Nutrient Intakes | 2001 | 2002 | Dietary | None |
| DRALANG | The SP/Proxy spoke mostly: | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRD020 | What time did you begin to eat/drink the meal/food? | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRD030Z | Name of eating occasion | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRD040Z | Was this food eaten at home? | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRDCCMTZ | Combination food type | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRDDAY | Intake day of the week | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRDDRSTZ | Dietary recall status | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRDIFDCD | USDA food code | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRDISODI | Sodium (mg)(adjusted for salt use in food preparation) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXCCMNM | Combination food number | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIACAR | Alpha-carotene (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIALCO | Alcohol (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIATOC | Vitamin E as alpha-tocopherol (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIBCAR | Beta-carotene (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICAFF | Caffeine (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICALC | Calcium (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICARB | Carbohydrate (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICHOL | Cholesterol (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICOPP | Copper (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXICRYP | Beta-cryptoxanthin (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIFA | Folic acid (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIFDFE | Folate as dietary folate equivalents (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIFF | Food folate (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIFIBE | Dietary fiber (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIFOLA | Total Folate (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIGRMS | Gram weight of the food/individual component | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIIRON | Iron (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIKCAL | Energy (kcal) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXILINE | Food/individual component number | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXILYCO | Lycopene (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXILZ | Lutein + zeaxanthin (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIM161 | MFA 16:1 (Hexadecenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIM181 | MFA 18:1 (Octadecenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIM201 | MFA 20:1 (Eicosenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIM221 | MFA 22:1 (Docosenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIMAGN | Magnesium (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIMFAT | Total monounsaturated fatty acids (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIMOIS | Moisture (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXINIAC | Niacin (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP182 | PFA 18:2 (Octadecadienoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP183 | PFA 18:3 (Octadecatrienoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP184 | PFA 18:4 (Octadecatetraenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP204 | PFA 20:4 (Eicosatetraenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP205 | PFA 20:5 (Eicosapentaenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP225 | PFA 22:5 (Docosapentaenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIP226 | PFA 22:6 (Docosahexaenoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIPFAT | Total polyunsaturated fatty acids (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIPHOS | Phosphorus (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIPOTA | Potassium (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIPROT | Protein (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIRET | Retinol (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS040 | SFA 4:0 (Butanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS060 | SFA 6:0 (Hexanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS080 | SFA 8:0 (Octanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS100 | SFA 10:0 (Decanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS120 | SFA 12:0 (Dodecanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS140 | SFA 14:0 (Tetradecanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS160 | SFA 16:0 (Hexadecanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIS180 | SFA 18:0 (Octadecanoic) (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXISELE | Selenium (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXISFAT | Total saturated fatty acids (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXISUGR | Total sugars (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXITFAT | Total fat (gm) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXITHEO | Theobromine (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVARA | Vitamin A as retinol activity equivalents (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVB1 | Thiamin (Vitamin B1) (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVB12 | Vitamin B12 (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVB2 | Riboflavin (Vitamin B2) (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVB6 | Vitamin B6 (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVC | Vitamin C (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIVK | Vitamin K (mcg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DRXIZINC | Zinc (mg) | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| SEQN | Respondent sequence number. | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| WTDR4YR | Dietary day one 4-Year sample weight - Used for 1999-2002 data collection years only | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| WTDRD1 | Dietary day one 2-Year sample weight - Used for 2001-2002 data collection years only | DRXIFF_B | Dietary Interview - Individual Foods | 2001 | 2002 | Dietary | None |
| DSD010 | The next questions are about {your/SP's} use of dietary supplements and medications during the past month. {Have you/Has SP} used or taken any vitamins, minerals or other dietary supplements in the past month? Include those products prescribed by a health professional such as a doctor or dentist, and those that do not require a prescription. This card lists some examples of different types of dietary supplements. | DSQ1_B | Dietary Supplement Use 30-Day - File 1, Supplement Counts | 2001 | 2002 | Dietary | None |
| DSDCOUNT | Includes all supplements and the antacids reported with supplements, but not antacids reported with medications. | DSQ1_B | Dietary Supplement Use 30-Day - File 1, Supplement Counts | 2001 | 2002 | Dietary | None |
| SEQN | Respondent sequence number. | DSQ1_B | Dietary Supplement Use 30-Day - File 1, Supplement Counts | 2001 | 2002 | Dietary | None |
| DSD070 | | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSD090 | For how long have you been taking {PRODUCT NAME} or a similar type of product? | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSD103 | In the past 30 days, on how many days did you take {PRODUCT NAME}? | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSD122Q | On the days that you took it, how much did you take? | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSD122U | Dosage form | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSDANTA | Antacid reported as a dietary supplement | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSDMTCH | | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSDSUPID | Supplement ID number | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| DSDSUPP | Supplement name | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |
| SEQN | Respondent sequence number. | DSQ2_B | Dietary Supplement Use 30-Day - File 2, Participant's Use of Supplements | 2001 | 2002 | Dietary | None |