MICRONUTRIENTS GUIDE
Vitamins and minerals complete the nutrition picture.
Micronutrients are vitamins and minerals the body needs in relatively small amounts. They support many processes but do not contribute food energy in the same way protein, carbohydrate, and fat do.
The useful question is not whether one meal contains every nutrient. It is whether the repeated food pattern supplies an appropriate mix for the person and life stage.
MACRO VERSUS MICRO
Two layers. Different questions.
Macronutrients
Protein, carbohydrate, and fat
Used in larger amounts and responsible for much of food energy and meal structure.
Read the macronutrients guideMicronutrients
Vitamins and minerals
Needed in smaller amounts and involved in many structural, regulatory, metabolic, and fluid-balance processes.
VITAMINS
Organic compounds grouped by solubility.
Fat-soluble
Vitamins A, D, E, and K. Absorption and storage differ from water-soluble vitamins.
Water-soluble
Vitamin C and the B vitamins. Each still has distinct functions, references, and food sources.
MINERALS
Elements grouped partly by required amount.
Major minerals
Needed in larger amounts than trace minerals. Examples include calcium, magnesium, phosphorus, potassium, sodium, and chloride.
Trace minerals
Needed in smaller amounts. Examples include iron, zinc, iodine, selenium, copper, and manganese.
DAILY INTAKE REFERENCES
RDA, AI, DV, and UL are not interchangeable.
Each term answers a different planning, labeling, or high-intake question.
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| Term | Full name | Meaning | Use |
|---|---|---|---|
| RDA | Recommended Dietary Allowance | Average daily intake sufficient to meet the needs of nearly all healthy people in a defined life-stage and sex group. | Planning or assessing an individual intake when an RDA exists. |
| AI | Adequate Intake | An intake level used when evidence is not sufficient to establish an RDA. | A planning reference, but not the same evidence standard as an RDA. |
| DV | Daily Value | An FDA reference amount used to calculate percent Daily Value on food and supplement labels. | Comparing a serving with a standardized daily label reference. |
| UL | Tolerable Upper Intake Level | The highest average daily intake unlikely to pose risk for most people in a defined group. | Evaluating high habitual intake. UL is not a target. |
DRI values vary by age, sex, and life stage. The Daily Value is a standardized label reference, not a personalized requirement. A UL may not exist for every nutrient.
READ FOOD DATA
Use the serving, amount, and percent DV together.
- 01
Start with serving size
Match label values to the portion actually eaten.
- 02
Read the amount
Check grams, milligrams, or micrograms before comparing values.
- 03
Use percent DV
Compare the serving with the FDA Daily Value reference.
- 04
Review the pattern
Look across repeated meals instead of demanding every nutrient from one food.
Food composition varies with the food, variety, preparation, fortification, and portion. Packaged-food labels describe the labeled product. FoodData Central provides composition records for broader lookup.
VITAMIN AND MINERAL DIRECTORY
28 nutrients in one crawlable reference.
Names and common aliases are visible here. A nutrient name becomes a link only after its definitive reference page is sourced, reviewed, and published.
13 vitamins
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| Nutrient | Family | Also known as |
|---|---|---|
| Vitamin A | Fat-soluble vitamin | retinol, carotenoids |
| Vitamin B1 | Water-soluble vitamin | thiamin, thiamine |
| Vitamin B2 | Water-soluble vitamin | riboflavin |
| Vitamin B3 | Water-soluble vitamin | niacin |
| Vitamin B5 | Water-soluble vitamin | pantothenic acid |
| Vitamin B6 | Water-soluble vitamin | pyridoxine |
| Vitamin B7 | Water-soluble vitamin | biotin |
| Vitamin B9 | Water-soluble vitamin | folate, folic acid |
| Vitamin B12 | Water-soluble vitamin | cobalamin |
| Vitamin C | Water-soluble vitamin | ascorbic acid |
| Vitamin D | Fat-soluble vitamin | calciferol, vitamin D2, vitamin D3 |
| Vitamin E | Fat-soluble vitamin | alpha-tocopherol |
| Vitamin K | Fat-soluble vitamin | phylloquinone, menaquinones |
15 minerals
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| Nutrient | Family | Also known as |
|---|---|---|
| Calcium | Major mineral | Same common name |
| Chloride | Major mineral | Same common name |
| Chromium | Trace mineral | Same common name |
| Copper | Trace mineral | Same common name |
| Fluoride | Trace mineral | Same common name |
| Iodine | Trace mineral | Same common name |
| Iron | Trace mineral | heme iron, nonheme iron |
| Magnesium | Major mineral | Same common name |
| Manganese | Trace mineral | Same common name |
| Molybdenum | Trace mineral | Same common name |
| Phosphorus | Major mineral | phosphate |
| Potassium | Major mineral | Same common name |
| Selenium | Trace mineral | Same common name |
| Sodium | Major mineral | Same common name |
| Zinc | Trace mineral | Same common name |
JUDGE THE PATTERN
One meal is a sample. Several days show the pattern.
Review repeated foods and portions
Look for nutrients that remain low or unusually high across several days, not a nutrient absent from one meal.
Treat low intake, deficiency, and symptoms as different claims
A food log can identify an intake pattern. It does not establish body status, absorption, or a diagnosis.
Check high-dose sources and interactions separately
Food, fortified products, supplements, and medications can contribute differently. Relevant upper limits and interactions are nutrient-specific.
COMMON QUESTIONS
Before you compare the numbers.
What are micronutrients?
Micronutrients are vitamins and minerals needed in relatively small amounts. They support many body processes but do not contribute food energy in the same way protein, carbohydrate, and fat do.
What is the difference between vitamins and minerals?
Vitamins are organic compounds, while minerals are elements. Both groups contain nutrients with different functions, intake references, food sources, and storage characteristics.
Is Daily Value the same as RDA?
No. Daily Value is an FDA label reference used for percent DV. RDA is a Dietary Reference Intake value for nearly all healthy people in a specific life-stage and sex group.
What if a nutrient has an AI instead of an RDA?
An Adequate Intake is set when evidence is not sufficient to establish an RDA. It can still guide planning, but the two terms should not be treated as interchangeable evidence levels.
Should I aim for the upper limit?
No. A Tolerable Upper Intake Level is a high-intake boundary, not a recommended target. Some nutrients do not have an established UL, and the relevant value can depend on life stage and source.
Does hitting macro targets cover micronutrients?
Not necessarily. Two food patterns can have similar calories and macro grams while differing substantially in vitamins, minerals, fiber, and food variety.
SOURCES AND METHOD
Reference terms with the right source owner.
Reviewed July 21, 2026. IntakeCalc keeps DRI definitions, label references, and food-composition records separate.
Read IntakeCalc methodology- NIH Office of Dietary SupplementsNutrient Recommendations and Databases
- U.S. Food and Drug AdministrationDaily Value on Nutrition and Supplement Facts Labels
- U.S. Food and Drug AdministrationHow to Understand and Use the Nutrition Facts Label
- USDA National Agricultural LibraryMicronutrients
- U.S. Department of AgricultureFoodData Central
- U.S. Departments of Agriculture and Health and Human ServicesDietary Guidelines for Americans, 2025-2030
START WITH THE FOODS AND PORTIONS
Log the meal pattern before you judge the coverage.
Use IntakeCalc to capture foods and portions. Then use labels and authoritative composition records when you need micronutrient detail.