Short answer: Most dietary supplements classify in heading 2106 as food preparations, gummies included, unless they are medicaments with therapeutic claims (3004) or single-ingredient vitamins with dosage-level purity (2936). The deciding factors are composition, presentation, and what your label claims the product does.
Why supplements are a classification puzzle
The Harmonized System was not designed with the modern supplement aisle in mind. A single product can plausibly look like food, like medicine, or like a cosmetic, and each of those lives in a different chapter with a different duty rate. The classification does not follow what the product is called on the label; it follows the tariff's legal notes, which define categories by composition and function.
The stakes are real. Food preparations under 2106, medicaments under 3004, and organic chemicals under 2936 carry different duty rates, different FDA entry requirements, and different levels of customs scrutiny. Misclassify a supplement as a food when customs sees a drug claim on the label, and the entry gets flagged for both the wrong duty and a potential FDA issue.
The puzzle gets harder because supplement formats keep evolving. Gummies, effervescent tablets, liquid shots, and functional beverages each interact with the tariff notes differently. A classification that was correct for your capsule line may be wrong for the gummy line, even with similar active ingredients.
The three headings that matter most
Heading 2106, food preparations not elsewhere specified, is the default home for most multi-ingredient supplements: protein powders, multivitamin gummies, greens blends, and anything marketed as nutrition rather than therapy. The heading is a basket category, which is exactly why so many supplements land there: they are food-like preparations that fit nowhere more specific.
Heading 3004, medicaments, applies when the product is presented as having therapeutic or prophylactic properties: treating, preventing, or curing a condition. The trigger is usually the label and marketing claims. A vitamin D capsule marketed for general wellness sits in 2106; the same capsule marketed as treating vitamin D deficiency with dosage instructions starts looking like 3004. Customs reads your website, so the claims you make in advertising can reclassify your product at the border.
Heading 2936 covers certain isolated vitamins, like ascorbic acid or tocopherol, when they meet the purity and presentation criteria of the chemical chapters. This is the narrowest path: it applies to single-ingredient products of defined chemical composition, not to blended formulas. Brands sometimes reach for 2936 hoping for a lower rate, but a blended gummy will never qualify, and claiming it invites a reclassification.
Where supplement brands go wrong
The most common error is classifying by format instead of by legal criteria. Gummies feel like candy, so brands classify them as sugar confectionery under 1704. But a gummy with vitamin fortification marketed as a supplement is not candy to customs; the active ingredients and the supplement presentation push it to 2106. Format is the least important factor in the analysis.
The second error is ignoring the label-claims trap. Marketing teams write structure-function claims for the website, like supports immunity or reduces inflammation, without realizing those claims are evidence in a classification dispute. The stronger the therapeutic claim, the stronger the argument for 3004. Coordinate classification review with marketing copy, not after it.
The third error is assuming one classification covers the whole product line. Different SKUs with different compositions, dosages, or claims can classify differently. The multivitamin, the single-ingredient vitamin D, and the herbal blend are three separate classification analyses. Brands that copy one HTS code across the catalog are building a single point of failure.
Getting the classification right
Start with the composition and the claims, documented together. List every active and inactive ingredient with percentages, attach the label and the marketing claims, and work through the section and chapter notes in order. The General Rules of Interpretation decide ties: GRI 1 applies the headings' terms and notes, and most supplement disputes are resolved there without reaching the deeper rules.
For borderline products, get a binding ruling. Both US CBP and EU customs issue advance classification rulings that lock in the treatment. The application forces you to assemble the composition and claims documentation, which is valuable even before the ruling arrives, and the ruling itself ends internal debates and broker disagreements.
Revisit the classification when the product changes. Reformulations, new flavors with different ingredient profiles, and updated marketing claims can all move a product between headings. Build classification review into the product development process so the new gummy flavor gets its analysis before the first import, not after the first customs exam.
Are gummies classified as candy or supplements?
As supplements under 2106 in most cases, because the vitamin fortification and supplement presentation control the classification. Plain candy gummies without active ingredients stay in 1704. The dividing line is function and claims, not chewiness.
Does an FDA supplement label affect the HS classification?
Indirectly but importantly. The Supplement Facts panel and structure-function claims describe what the product is and what it purports to do, and customs uses that presentation as evidence. A label that reads like a drug label strengthens a 3004 argument, even if the formula could have stayed in 2106.
What about protein powders and pre-workout?
Protein powders are classic 2106 food preparations. Pre-workout blends with multiple active ingredients also generally land in 2106, unless the claims or composition push them toward medicaments. Single-ingredient creatine monohydrate of sufficient purity is the rare supplement that can qualify for the chemical chapters.