The Council for Responsible Nutrition, a trade association of nutritional-supplement manufacturers, said it was concerned about the problem.

A Moderate Faction A less militant faction of the industry is represented by the Council for Responsible Nutrition.

Throughout their history, the Council for Responsible Nutrition and the World Health Organization have published acceptable standards regarding contaminants in fish oil.

The trade association for the industry, the Council for Responsible Nutrition, agrees that standards should be set.

Last August the Council for Responsible Nutrition, an industry group, advised vitamin producers to stop making timed-release niacin.

Her father is the president of the Council for Responsible Nutrition, a trade association for the dietary supplement industry, in Washington.

Company founder Margaret Isely contributed to forming the precursor group that became the international trade group Council for Responsible Nutrition.

This petition was opposed by the Council for Responsible Nutrition, a trade association of the dietary supplement industry.

The food supplement industry, represented by its trade organization, the Council for Responsible Nutrition, said the new study did nothing to change its recommendation that people take vitamins.

About 35 percent of Americans take B vitamins, mostly in the form of multivitamin pills, according to the Council on Responsible Nutrition, a trade group.