Birds Eye Foods is voluntarily recalling frozen Cooked Winter Squash, which has been sold nationally under various store brands and the Birds Eye brand, because some of the products have been tainted with ammonia.

The recall was announced after the company received complaints from consumers and the company confirmed a problem with one store brand. The consumption of ammonia may cause headache, nausea, vomiting, and irritation of the throat, the company said.

“We will not take risks with our consumers,” said Neil Harrison, Birds Eye Foods chairman, president and CEO. “Our primary concern is their health and welfare, and while we investigate the extent of the problem, it is in their best interest that we immediately recall the products.”

The brands included in the recall are Birds Eye, Stop & Shop, Shaw, Price Chopper, Lafe, Shurfine, Hannaford, Flavorite, Market Basket, Wegmans, Giant, Tops, Safeway, IGA, Roundy’s Remarkable and Dominicks. In total, these products represent approximately 3m packages sold.

A third party, Chase Farms, produced the Cooked Winter Squash. Chase Farms has ceased production and distribution for Birds Eye Foods while the company completes its investigation. “Like Birds Eye Foods,” said Michael Chase, president of Chase Farms. “We see consumer safety as the most important part of our business. We will be working diligently to determine the cause of the issue and to assure it does not happen again.”