# Thiamin: FDA Daily Value

The FDA Daily Value for Thiamin is 1.2 mg for adults and children 4 or more years of age (§ 101.9(c)(8)(iv)). It changes by population group; see the table below.

**URL:** https://bettermenu.live/tools/rda/thiamin/
**Provider:** BetterMenu (https://bettermenu.live)
**Dataset:** US Nutrition Label Rules v17.0.0 (CFR snapshot: 2026-02-12)
**Type:** RDI (Reference Daily Intake), a fixed target not tied to calories
**Unit:** mg
**Citation:** § 101.9(c)(8)(iv)

## Daily Value by population group

Source: FDA, § 101.9(c)(8)(iv). "Not applicable" means the nutrient is absent from that group's FDA table; "No DV" means it is listed with no established value.

| Population group | Daily Value | Low (5% of DV) | High (20% of DV) |
| --- | --- | --- | --- |
| Adults & children 4+ | 1.2 mg | 0.06 mg | 0.24 mg |
| Children 1–3 years | 0.5 mg | 0.025 mg | 0.1 mg |
| Pregnant & lactating | 1.4 mg | 0.07 mg | 0.28 mg |
| Infants 0–12 months | 0.3 mg | 0.015 mg | 0.06 mg |

## Before 2016

For adults and children 4+, labels until 2020/2021 showed 1.5 mg. Now 1.2 mg. Decreased.

Source: 21 CFR 101.9(c)(8)(iv), edition revised as of April 1, 2016. "Thiamin, 1.5 milligrams"

The 2016 rule took effect on July 26, 2016 (81 FR 33742). Labels had to use the new values by January 1, 2020 for manufacturers with $10 million or more in annual food sales, and by January 1, 2021 for smaller ones (83 FR 19619). Values are for adults and children 4 or more years of age (21 CFR 101.9(c)(8)(i)).

- [View the 2016 edition (govinfo.gov)](https://www.govinfo.gov/content/pkg/CFR-2016-title21-vol2/pdf/CFR-2016-title21-vol2-sec101-9.pdf)
- [View the rule, 81 FR 33742 (Federal Register)](https://www.federalregister.gov/documents/2016/05/27/2016-11867/food-labeling-revision-of-the-nutrition-and-supplement-facts-labels)

## How %DV is calculated

1. Divide the amount of thiamin in one serving by its Daily Value (1.2 mg), and multiply by 100.
2. Round the result with this nutrient's %DV rounding table (§ 101.9(c)(8)(iii)), shown below.
3. 21 CFR 101.9(d)(7)(ii) permits either the actual amount in the serving or the amount declared on the label (itself rounded) as the basis for step 1.
4. FDA reads 5% DV or less as a little and 20% DV or more as a lot.

## Label rounding rules

- Regulation: in mg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- FDA guidance (nonbinding): nearest 0.01 mg

### Amount

Source: FDA guidance, "Nutrition and Supplement Facts Labels: Questions and Answers..." (Nov 2018, rev. Dec 2019), Section VI Q1 (nonbinding)

| Amount range (mg) | Declared as |
| --- | --- |
| ≥0 | nearest 0.01 mg |

### % Daily Value

Source: FDA, § 101.9(c)(8)(iii)

| %DV range | Rounded to |
| --- | --- |
| 0 to 10% DV | Nearest 2% |
| >10 to 50% DV | Nearest 5% |
| >50% DV | Nearest 10% |

## Related

- HTML page: https://bettermenu.live/tools/rda/thiamin/
- All FDA Daily Values: https://bettermenu.live/tools/rda.md
- Machine-readable dataset: https://bettermenu.live/tools/rda/data.json