Taco shells — FDA Serving Size (RACC)
The FDA Reference Amount Customarily Consumed (RACC) for Taco shells is 30 g, a Bakery Products category for the General (4+ years) population under 21 CFR 101.12 — the basis for its Nutrition Facts serving size.
A unit weighing 17 g yields a labeled serving size of 2 units (34 g) — the closest whole-unit approximation to the 30 g RACC, per 21 CFR 101.9(b)(2)(i)(B).
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Authoritative sources: 21 CFR 101.12 — reference amounts (RACC), 21 CFR 101.9(b) — serving-size conversion, and FDA: Serving Size on the Nutrition Facts label.
For informational purposes only; verify against 21 CFR 101.12 / 101.9(b). · US Nutrition Label Rules v1.3.0 · CFR snapshot 2026-02-12