Related sugar-free case · Last reviewed
Starbucks sugar-free lawsuit
Eight protein lattes and matchas labeled "Sugar-Free," and the milk sugar inside them
This is not an allulose lawsuit. We track it because it challenges a "Sugar-Free" claim under the same federal labeling rule at issue in the allulose cases. The alleged sugar in Starbucks' drinks is lactose from milk, not allulose. It is not included in any of our allulose case counts.
The short answer
Walsh et al. v. Starbucks Corporation, No. 2:26-cv-03745, is a proposed class action filed October 2, 2026 in the U.S. District Court for the Western District of Washington. It challenges "Sugar-Free" labels on eight Starbucks protein drinks that, according to the complaint, contain naturally occurring sugar from milk. (Public court feed, Reuters)
No class has been certified and no court has found Starbucks liable.
The eight drinks
- Sugar-Free Vanilla Protein Latte
- Sugar-Free Caramel Protein Latte
- Sugar-Free Vanilla Protein Matcha
- Sugar-Free Caramel Protein Matcha
- Iced Sugar-Free Vanilla Protein Latte
- Iced Sugar-Free Caramel Protein Latte
- Iced Sugar-Free Vanilla Protein Matcha
- Iced Sugar-Free Caramel Protein Matcha
The case concerns these eight drinks as reported. It does not cover every Starbucks drink. (AP)
How much sugar the complaint alleges
According to the complaint as reported, each drink contains about 13 to 21 grams of sugar in a 20- or 24-ounce venti serving, coming from lactose, the sugar naturally found in milk. (Reuters, AP)
These are the plaintiffs' allegations. They have not been tested in court.
The federal rule
Federal regulations set conditions for "sugar free" claims, including less than 0.5 grams of sugars per serving. (21 C.F.R. § 101.60) The plaintiffs reportedly argue that the drinks exceed that threshold.
The complaint also reportedly alleges that Starbucks left out the disclosure that must accompany some sugar-free claims, stating that a product is not low calorie or is not for weight control. (AP)
Why "sugar free" is not the same as "no added sugar"
The same regulation treats "sugar free" and "no added sugar" as different claims with different conditions. A drink can have no sugar added during preparation and still contain sugar that occurs naturally, such as lactose in milk. Read more in Zero Sugar vs. Sugar Free vs. No Added Sugar.
That distinction explains the two sides of this case. It does not decide which side is right.
What Starbucks has said
Starbucks has said the claims lack merit. It has said the sugar in the drinks comes naturally from its protein-boosted milk, that it does not add sugar to them, that it flavors them with sugar-free syrup, and that nutrition information is available on its menus, website and app. (Reuters)
Proposed class and relief
Three named consumers who bought the drinks in California, New York and Washington, according to news reports and plaintiffs' counsel. (AP) The case is brought as a proposed class action. No class has been certified.
According to news reports, the plaintiffs seek unspecified damages and an order stopping Starbucks from calling drinks that contain sugar "sugar-free." (Reuters) Plaintiffs' counsel: Hagens Berman Sobol Shapiro LLP and Sterlington PLLC. (Counsel's case page)
Where it stands
The complaint was filed October 2, 2026. We have not identified a class-certification order, a court-approved settlement or an official claim form in the records reviewed as of October 6, 2026. Our review is not a complete same-day docket check.
How it relates to the allulose cases
| Issue | Allulose cases | Starbucks case |
|---|---|---|
| Claim challenged | Zero Sugar, Sugar Free, 0g Sugar, No Added Sugar and similar | Sugar-Free |
| Sugar at issue | Allulose | Lactose |
| Federal sugar-free rule (§ 101.60) relevant | Yes | Yes |
| Whether allulose counts as a sugar is the central question | Yes | No |
| FDA allulose guidance relevant | Yes | No |
| In our allulose case counts | Yes | No |
The allulose cases ask whether allulose, which FDA lets manufacturers leave out of the sugar lines on the Nutrition Facts label, still counts as a sugar for a front-of-pack claim. The Starbucks case does not raise that question, because lactose is an ordinary sugar. See the legal framework behind sugar-free claims.
What we know and what we do not
Supported
- a proposed class action was filed October 2, 2026 in the W.D. Wash.;
- it challenges "Sugar-Free" labels on eight Starbucks protein drinks;
- the alleged sugar is lactose from milk, not allulose.
Not established
- that the labels violate federal or state law;
- a certified class;
- a settlement or claim process.
Sources
- Walsh et al. v. Starbucks Corporation Open Public Records · October 2, 2026
- Starbucks sued over 'sugar-free' claims for protein beverages Reuters · October 5, 2026
- Starbucks mislabeled 8 'sugar-free' protein drinks, lawsuit alleges Associated Press · October 5, 2026
- Starbucks "Sugar-Free" Labeling Class Action Hagens Berman Sobol Shapiro LLP (plaintiffs' counsel)
- 21 C.F.R. § 101.60, Nutrient content claims for the calorie content of foods Electronic Code of Federal Regulations
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