ScienceModernUnited Stateshigh confidence

A food product labeled '0 g trans fat' may still legally contain up to 0.5 grams of trans fat per serving.

Notes on verification

Confirmed by FDA's own regulatory guidance and multiple independent secondary sources (university extension, legal summary, health department). No conflicting information found. [tier=gold indep_score=0.95 clusters=3 claim_tier=notable]

Sources