The Rainbow Light prenatal vitamins lawsuit actually refers to two separate legal actions that together produced $8.5 million in settlements. In August 2019, the Los Angeles City Attorney’s office settled false advertising claims against Rainbow Light Nutritional Systems LLC for $1.75 million. A nationwide class action followed, resolving in July 2020 for $6.75 million. Both cases centered on the same problem: Rainbow Light marketed prenatal vitamins as “free of heavy metals” while independent testing detected lead, arsenic, and cadmium in the products.
What the Testing Found
Third-party lab testing commissioned by the Los Angeles City Attorney’s office, then led by Mike Feuer, found detectable levels of lead, arsenic, and cadmium in Rainbow Light’s prenatal vitamins. That directly contradicted advertising claims that the products were “free of heavy metals” and made with the “lowest detectable lead level” on the market.1CBS News Los Angeles. Rainbow Light Prenatal Vitamins Marketed as Free of Heavy Metals Found to Contain Lead, Arsenic, Cadmium
Rainbow Light argued its products complied with California’s Proposition 65 lead limit of 0.5 milligrams per day, which the company described as among the strictest standards in the country. The City Attorney’s office countered that those limits were based on “old science” and noted that state legislators had considered lowering the acceptable level to 0.2 micrograms per day. Independent testing found several Rainbow Light prenatal products initially exceeded that lower threshold.2NutraIngredients. Los Angeles Forces $1.75 Million Pact With Rainbow Light Over Lead in Prenatal Vitamins
The legal theory did not depend on Rainbow Light exceeding any existing safety limit. It rested on the plain claim that telling consumers a product was “free” of heavy metals was untrue when testing repeatedly found them.3KATV. Targeting Lead in Prenatal Vitamins: How One Case Could Change an Industry Rainbow Light defended the safety of its vitamins, saying they contained “less lead than you could find in a typical serving of spinach” because the products include plant- and mineral-based ingredients that carry trace amounts of heavy metals.1CBS News Los Angeles. Rainbow Light Prenatal Vitamins Marketed as Free of Heavy Metals Found to Contain Lead, Arsenic, Cadmium
The $1.75 Million Los Angeles Settlement
The settlement was entered in Los Angeles Superior Court on August 14, 2019. Of the $1.75 million total, $1.5 million went to restitution for California consumers who had purchased the vitamins in the prior four years, and $250,000 covered civil penalties and costs.4NBC Los Angeles. Company Will Pay $1.75 Million, Reduce Amounts of Lead in Prenatal Vitamins5Beverly Press. City Attorney Reaches Settlement With Prenatal Vitamins Maker
Rainbow Light also agreed to ongoing obligations. It had to pull the “free of heavy metals” and “lowest detectable lead level” claims from its marketing. Every six months, the company must test its prenatal vitamins to determine whether lead exceeds 0.2 micrograms per daily serving. If testing shows an exceedance, Rainbow Light has to notify the City Attorney’s office, investigate, and report findings within 45 days, then produce and test newly manufactured product within 120 days to confirm compliance.6Courthouse News Service. Prenatal Vitamin Maker Settles Claims Over Lead in Pills for $1.5 Million
The $6.75 Million Nationwide Class Action
A separate class action, Smid v. Nutranext LLC, et al. (Case No. 20L0190), was filed in March 2020 in the Twentieth Judicial Circuit Court of St. Clair County, Illinois. It named Rainbow Light along with its parent company Nutranext and affiliated brands Renew Life and NeoCell, and produced a $6.75 million settlement fund.7Top Class Actions. Rainbow Light Vitamins Class Action Settlement
The class covered two groups of purchasers who bought products between December 1, 2015, and April 16, 2020:
- Consumers nationwide, excluding California residents already covered by the City Attorney settlement, who purchased Rainbow Light prenatal or postnatal products.
- Consumers nationwide who purchased any other Rainbow Light vitamins, multivitamins, or supplements during the same window.7Top Class Actions. Rainbow Light Vitamins Class Action Settlement
Individual payouts were small. Claimants without proof of purchase could recover up to $9.50 total; those with receipts or documentation could recover up to $18. Prenatal and postnatal bottles were reimbursed at $4 to $7 each, other supplements at $1 to $2 each.7Top Class Actions. Rainbow Light Vitamins Class Action Settlement
The court preliminarily approved the settlement in April 2020 and granted final approval on July 29, 2020. Checks went out to valid claimants in late 2020, and the settlement is closed.8Top Class Actions. Rainbow Light Vitamins Lawsuit Settlement Website Is Live The claims period has ended, so consumers cannot file new claims tied to either case.
Who Owns Rainbow Light Now
The lawsuits landed while Rainbow Light was owned by The Clorox Company, which had acquired parent company Nutranext for $700 million in March 2018.9NutraIngredients. Clorox Company Dismisses VMS Business Sale Rumors In October 2024, Clorox sold Rainbow Light along with three other brands to Piping Rock Health Products, a supplement manufacturer based in Bohemia, New York.10New Hope Network. Piping Rock Health Products Announces Acquisition of Four Esteemed Wellness Brands
Why Heavy Metals Ended Up in Prenatal Vitamins
The cases exposed a gap in federal oversight. The FDA treats dietary supplements as a “special category of food” rather than as drugs, meaning prenatal vitamins are not evaluated for safety or effectiveness before reaching store shelves.11U.S. Government Accountability Office. GAO-24-106689: Dietary Supplements No federal statute defines what a prenatal supplement must contain, and no federal rule requires manufacturers to test for heavy metals.12Environmental Working Group. Gov. Newsom Signs Nation’s First Law to Require Tests for Prenatal Vitamins The Government Accountability Office has recommended Congress grant the FDA additional authority, including the power to require product registration and label disclosure before marketing, but Congress has not acted on that recommendation.
California is moving on its own. In October 2025, Governor Gavin Newsom signed SB 646, making California the first state to require prenatal multivitamin manufacturers to test for and publicly disclose levels of lead, cadmium, mercury, and arsenic. The law takes effect January 1, 2027, and requires manufacturers to post specific test results on a website linked from the product label.12Environmental Working Group. Gov. Newsom Signs Nation’s First Law to Require Tests for Prenatal Vitamins It follows the model of AB 899, a 2023 California law imposing similar testing requirements on baby food.13Center for Science in the Public Interest. CA Legislature Passes Bill to Protect Against Toxic Heavy Metals in Prenatal Vitamins