PepsiCo's Quaker Oats is facing a potential class-action lawsuit that alleges the food brand's claims it is "100% Natural" are deceptive. 
 
 The lawsuit specifically alleges that Quaker Oats claims its oats are grown using "eco-friendly" methods but that the brand contains the chemical glyphosate, which is purportedly sprayed on the oats as a drying agent shortly before harvest. Glyphosate notably generated headlines last year after the World Health Organization declared the chemical "probably" causes cancer in people. 
 
 While the lawsuit, which was filed in Federal District Courts in California and New York, concedes there is nothing unlawful about Quaker Oats' growing and processing methods, it contends the brand's products are not "Natural," "100% Natural," or "100% Natural Whole Grain" as labeled and marketed. 
 
 Specifically, the complaint –which is seeking class action status–calls out three products: Quaker Oats Old-Fashioned, Quaker Oats Quick 1-Minute, and Quaker Steel Cut Oats Sweet Almond Mint. 
 
 PepsiCo ( pep ) , meanwhile, says it stands by the safety and quality of Quaker Oats' products, adding "producing health, wholesome food is Quaker's number one priority and we've been doing that for nearly 140 years." 
 
 "Quaker does not add glyphosate during any part of the milling process," PepsiCo said in a statement to Fortune . "Glyphosate is commonly used by farmers across the industry who apply it pre-harvest." 
 
 The food and beverage giant says that while it thoroughly cleanses the oats it uses after delivery from farms, any trace amounts of glyphosate that may remain are "significantly below any limits which have been set by the Environmental Protection Agency as safe for human consumption." 
 
 The lawsuit is seeking an order to change PepsiCo's advertising practices, as well as a recall of Quaker Oats products, restitution and other damages. 
 
 PepsiCo isn't alone in facing a legal challenge related to the claims it makes for its products. As Fortune has previously reported , a number of brands, including Honest Co., Blue Diamond, and Welch's Fruit Snacks, have also faced recent litigation. 

 A lawsuit filed against Quaker Oats calls into question the company's claims that its product is 100 percent natural. The New York Times reports a class-action lawsuit has been filed against the company in New York and California "after testing found traces of the pesticide glyphosate in some oatmeal." 
 
 Glyphosate is the active ingredient in weed-killer Roundup but according to the Times, the amount found in Quaker oats fall far below potentially harmful levels. The real issue, according to this lawsuit at least, is that the product is marketed as "100 percent natural" and therefore is being falsely advertised. 
 
 According to the Times, the lawsuit will be filed in additional states this week. The plaintiffs are seeking refunds and asking that PepsiCo (Quaker's parent company) "either be required to reformulate the products or disclose the presence of glyphosate in them." 
 
 Glyphosate has also been found in more than dozen popular German beers. Earlier this year, the Food and Drug Administration announced that it would begin cracking down on the use of glyphosate; the World Health Organization has concluded the herbicide "probably" causes cancer, in part based on a 1985 study on mice. But Monsanto, the company behind Roundup, disputes that research, writing on its website that "glyphosate is not a carcinogen." 
 
 This isn't the first time Quaker has found itself in hot water over claims of false labeling. In 2014, the company settled a class action case regarding trans fat content; as part of that settlement, Quaker agreed to remove trans fats from its Oatmeal to Go and Instant Quaker Oatmeal products.
– The nearly 140-year-old Quaker Oats brand isn't as wholesome as its name might imply, according to a lawsuit seeking class-action status after trace amounts of the active ingredient in Roundup were found in some oats, which are advertised as being "100% natural," reports the New York Times. Glyphosate, developed by Monsanto in the 1970s, has recently been on the radar since the World Health Organization announced last year that it "probably" causes cancer, while the Food and Drug Administration announced earlier this year that it will begin testing some foods for it. Eater reports that it's been found in more than a dozen popular German beers. "Quaker does not add glyphosate during any part of the milling process," parent company PepsiCo said in a statement to Fortune, which notes that several brands, including Honest Co. and Welch's Fruit Snacks, have recently faced similar litigation. "Glyphosate is commonly used by farmers across the industry who apply it pre-harvest." But the lawsuit specifically calls out false advertising, not growing problems. "There is nothing unlawful about Quaker Oats' growing and processing methods," it reads. "What is unlawful is Quaker's claim that Quaker Oats is something that it is not in order to capitalize on growing consumer demand for healthful, natural products." The lead attorney says the suit was filed in New York and California over the weekend and will be filed in other states this week. (Results are mixed on whether the herbicide is an issue in breast milk.)