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Weight Watchers Australia has recalled its Rich Toffee bars because they contain egg white, which was not declared on the label.
Weight Watchers says the bars could pose a health risk to consumers who are intolerant to egg white.
Consumers who are allergic to eggs should not consume the product, it says.
Weight Watchers has recalled 5 x 28g Rich Toffee bars sold at Weight Watchers meetings and over the internet with the best-before date of March 2009 and batch codes L8079 or L8080.