Table 2. Top Five Primary Dietary Sources for Micronutrients in NIH-AARP Diet and Health Study for Men and Women Combined.
| Micronutrient+Mean (SD) Intake | Primary Source (%) | Secondary Source (%) | Tertiary Source (%) | Fourth Source (%) | Fifth Source (%) |
| Selenium: 94±42.9 | Bread/Rolls (13.9) | Pasta (6.7) | Tuna (4.8) | Fish - Not Fried (4.1) | Eggs (4.0) |
| Vitamin C: 157.0±103.7 | Orange/GrapefruitJuice (29.1) | Orange/Tangelos (7.9) | Broccoli (7.3) | Other Juice (5.1) | Grapefruit (4.5) |
| Beta-carotene:4,234.3±3,767.6 | Carrots (36.8) | Sweet Potatoes (12.4) | Spinach/Greens (9.8) | Vegetable Medley (5.3) | Broccoli (2.9) |
| Calcium: 766.5±429.1 | Milk –1 & 2% (11.2) | Milk - Skim (10.8) | Milk - In Cereal (9.0) | Bread/Rolls (5.4) | Cereal (3.7) |
| Folate: 411.4±182.2 | Cereal (14.5) | Orange/GrapefruitJuice (10.8) | Lettuce (4.9) | Bread/Rolls (4.7) | Spinach/Greens (4.1) |
| Magnesium: 326.2±129.7 | Coffee (11.3) | Bread/Rolls (5.6) | Cereal (5.4) | Orange/Grapefruit Juice (4.2) | Bananas (3.5) |
| Vitamin E: 8.8±4.6 | Cereal (10.2) | Salad Dressing (7.5) | Oils (3.8) | Nuts/Seed -Whole (3.7) | Tomato Sauces w/Meat (3.6) |
| Zinc: 10.4±4.8 | Cereal (11.0) | Beef - Steak (4.8) | Bread/Rolls (4.4) | Beef - Burger (4.2) | Beef - Meatball (3.3) |
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Micronutrients measured as followed: Selenium (mcg/day), Betacarotene (mcg/day), Calcium (mg/day), Folate (mcg/day), Magnesium (mg/day), Vitamin C (mg/day), Vitamin D (mcg/day), Vitamin E (mg/day), Zinc (mg/day). Vitamin D food sources not available.