Stacy Gradney, et al. v. Polar Beverages

District Court, N.D. California·Decided February 18, 2026·No. 3:25-cv-02149·Unknown

Opinion

STACY GRADNEY, et al., Case No. 25-cv-02149-EMC

Plaintiffs, ORDER GRANTING DEFENDANT’S v. MOTION TO DISMISS

Docket No. 43 Defendant.

Plaintiffs Stacy Gradney and Sharon Toll have filed suit against Defendant Polar Beverages. They allege that Polar has breached its warranty and violated consumer protection law (under New York and California state law) by labeling certain flavors of its seltzer water as “100% Natural” even though those flavors contain synthetic ingredients. Previously, the Court granted Polar’s motion to dismiss but gave Plaintiffs leave to amend. See Docket No. 30 (order). Plaintiffs filed a first amended complaint (“FAC”), and Polar now moves to dismiss that pleading. Having considered the parties’ briefs as well as the oral argument of counsel, the Court hereby GRANTS Polar’s motion but gives Plaintiffs leave to amend. In the operative FAC, which includes an expert declaration as an attachment, Plaintiffs allege as follows. Polar is a company that manufactures and sells a line of seltzer water products. The seltzers are sold in a variety of flavors – e.g., lime, cranberry lime, black cherry, ginger lime mule, ruby red grapefruit, and blackberry mango. See FAC ¶ 2; FAC ¶ 7 n.1. Regardless of flavor, the listed are also the same: water and “natural flavors.” See FAC ¶ 5. Although Polar claims the seltzers are “100% Natural,” the products, in fact, are not because they “contain a material amount of synthetic ingredients.” FAC ¶ 6; see also FAC ¶¶ 40- 41 (alleging that “a reasonable consumer would understand the phrase ‘100% Natural’ on a Product’s label to convey that the Product is devoid of artificial/synthetic ingredients” and that “[t]his understanding is consistent with [the] FDA which considers ‘natural’ to mean nothing artificial or synthetic is included in, or has been added to, the product that would not normally be expected to be there”). Because water is natural, the synthetic ingredients are found in the natural flavors. See FAC ¶ 10. Contrary to what its name suggests, “natural flavors” – as that term is defined in FDA regulations, see FAC ¶ 45 (citing 21 C.F.R. § 101.22(a)(3) – can, in fact, contain synthetic ingredients.

In elemental terms, a natural flavor is anything that can be extracted from an animal or plant source. It is called “natural” because the original source of the flavor additive is not manmade[,] . . . [but, even if] originating from a single natural source, the finalized flavor can contain as many as 250 chemically identified constituents, some of which are artificial and synthetic. FAC ¶ 46 (emphasis added); see also FAC ¶ 47 (noting that something can qualify as a “natural flavor” even if it has some constituent components that are artificial or synthetic – i.e., has non- natural ingredients). Here, Plaintiffs challenge not the term “natural flavors” as used in Polar’s ingredient list, but more specifically the term “100% Natural” which appears on (or at least used to appear on) the packaging. As alleged, Plaintiffs conducted tests which showed that at least two flavors of Polar’s seltzers – cranberry lime and ruby red grapefruit – contain synthetic ingredients. See FAC ¶¶ 7, 9 (noting that six flavors were tested overall). The first test was radiocarbon testing, which is “one of the most definitive analytical methods for distinguishing between natural and synthetic materials (e.g., those derived from petrochemicals).” Compl. ¶ 57. If an item is found to be “100% Biobased Carbon,” that indicates it is “entirely sourced from plants or animals,” and therefore is fairly deemed 100% natural. See Compl. ¶ 7. “Conversely, any result less than 100% Compl. ¶ 7. Testing for cranberry lime showed that it was 27% synthetic; testing for ruby red grapefruit showed that it was 28% synthetic. See Compl. ¶ 9. The second test was Gas Chromatography Mass Spectrometry (“GCMS”). “The GCMS identified the following sub-components (ethyl butyrate, octanal, limonene, linalool, α-terpineol, ethyl acetate, isoamyl alcohol, isoamyl acetate, ethyl 2-methylbutyrate, 1,4-cineol1) as the most significant constituents in the natural flavors used by [Polar]” – i.e., they are the ingredients used in the natural flavors. FAC ¶ 11. Notably, these ingredients are all “available in both natural and synthetic versions.” Keranen Decl. ¶ 4 (expert declaration attached to FAC) (emphasis added); see also Opp’n at 11 (providing an example: “[e]thyl butyrate may be extracted from fruits such as pineapples or oranges or may be chemically synthesized (typically by reacting ethanol with butyric acid”); cf. Trammell v. Albertsons Co., No. 24-cv-00862-AJB-AHG, 2024 U.S. Dist. LEXIS 241572, at *3 (S.D. Cal. Nov. 25, 2024) (taking note of plaintiff’s allegations that (1) malic acid can be derived from natural fruit sources but, if so, it is expensive and generally cost prohibitive to use in mass-produced foods and beverages and (2) malic acid is also available in a synthetic version, which is derived from a petroleum substrate and other synthetic components). However, Plaintiffs maintain that at least one of these ingredients (possibly more) must be synthetic because of the radiocarbon testing results. See Keranen Decl. ¶ 4. Plaintiffs admit that they cannot determine which specific ingredients in the natural flavors are in fact synthetic. They maintain that they cannot do so without more information that is “held exclusively” by Polar and/or its flavor formulator (i.e., the company that provides the natural flavors to Polar). FAC ¶ 11. As stated by Plaintiffs’ expert, “the exact determination of the synthetic compound or compounds requires information regarding the ingredient sources, specifications, manufacturing process, and composition of the commercial flavor concentrate.”2 1 Eight of these ten ingredients “were common to both flavors.” Opp’n at 8.

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