Instructions: Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.
Input: Paragraph: Ahold Delhaize says its U.S. subsidiaries will work with suppliers to meet standards higher than what is required by law and collaborate to address causes of contaminants. The company operates Food Lion, Giant Food, Giant/Martin's, Hannaford, Peapod and Stop & Shop. The "chemicals of concern" outlined in the policy include per- and polyfluoroalkyl substances (PFAS), bisphenol A (BPA) and phthalates. The Portland Press Herald reports these chemicals are still allowed under U.S. Food and Drug Administration rules; environmental health experts say there's evidence the chemicals can contribute to chronic health issues. Claim: Supermarket chain restricts "chemicals of concern".
Output:
A Maine supermarket corporation is executing new restrictions on the use of chemical products and packaging deemed hazardous by some environmental health groups.