Folate Intake Calculator
Folate mcg from food and pills against RDA.
What it does
Folate builds DNA and red cells on micrograms a day: 400 for adults, 600 in pregnancy against neural tube defects. Greens, beans, and pills stack toward it with a synthetic ceiling.
The tool above takes leafy and legume servings with pill mcg by life stage. It returns total mcg, the RDA share, and the safety verdict.
The default woman with greens, beans, and 400 mcg totals 730 mcg, or 183% of RDA. Zeros read flat while the pregnant case reads 122%.
Supplement guidance fixes the 400/400/600/500 ladder with the 1,000 synthetic folic acid ceiling. Federal labeling repeats 400 mcg as the Daily Value behind panels.
Food folate never trips the ceiling; pills and fortified flour do. Preconception planners start 400 mcg daily months ahead, since tubes close before tests turn.
How to use
- Pick the life stage.
- Type leafy servings.
- Type legume servings.
- Type supplement mcg.
- Read total first.
- Read share and safety beside it.
Formula
- leafy
- Leafy green servings near 150.
- legume
- Bean and lentil servings near 180.
- RDA
- 400 men and women, 600/500.
NIH Office of Dietary Supplements sets adult RDA at 400 mcg DFE with 600 pregnancy and 500 lactation, and a 1,000 synthetic folic acid upper limit. Federal Daily Value rules list 400 mcg for labeling. Produce factors are planning estimates; pills read exact from labels.
Worked example
Example: greens, beans, and a pill
Defaults: woman, 1 leafy, 1 legume, 400 mcg pill.
- Eater: woman, 1 leafy, 1 legume, 400 mcg pill.
- Leafy: 1 x 150 = 150 mcg DFE.
- Legume: 1 x 180 = 180 mcg DFE.
- Total: 150 + 180 + 400 = 730 mcg.
- Share: 730 / 400 = 183% of RDA.
- Tool shows 730 mcg DFE, 183% of RDA, Within safe range.
Reference table
| Group | RDA | UL* |
|---|---|---|
| Men | 400 | 1,000 |
| Women | 400 | 1,000 |
| Pregnancy | 600 | 1,000 |
| Lactating | 500 | 1,000 |
Limits
- Estimates; foods vary.
- DFE math simplified here.
- Not a deficiency diagnosis.
- Labels beat planning factors.
Common mistakes
- Skipping preconception pills.
- Counting iceberg like spinach.
- Stacking pills past 1,000.
- Boiling greens to gray.
- Self treating anemia.
Try it yourself
Quick checks. Answers sit tucked under each question.
Man, zeros across?
0 mcg, 0% of RDA, within safe range but far under goal.
Pregnant, 1 leafy, 1 legume, 400 pill?
730 mcg, 122% of 600 RDA, within safe range.
Pill 99,999 mcg?
Past 10,000 mcg pills exceed entry bounds: read the label and retry.
Questions
How much daily?
Men 400, women 400, pregnancy 600, lactating 500 mcg DFE. Supplements over 1,000 trip the UL.
Sources counted?
Greens near 150 a serving, legumes near 180, pills exact in DFE.
Pregnancy role?
400 mcg daily before conception through week 12 cuts neural tube defects sharply.
Upper limit scope?
The 1,000 UL covers synthetic folic acid only, not food folate. Pills plus fortified foods stack.
Diagnose deficiency?
No, this estimates intake. Anemia and deficiency need labs and clinicians.
Cooking losses?
Yes, heat and water leach it. Steam quickly and drink the pot liquor where apt.
Sources
- NIH Office of Dietary Supplements: folate fact sheet
- 21 CFR 101.36: Daily Value 400 mcg (Cornell LII)