Nestlé SA, the world's largest food company, announced plans to reduce the salt content of hundreds of products by up to 10 percent over the next three years. The initiative aims to meet a World Health Organization goal of no more than five grams of salt a day per person by 2025, and continues salt-reduction efforts at Nestlé that began in 2005. The company says the decision will affect Stouffer's frozen foods, DiGiorno pizza, Buitoni pasta and Maggi instant soup, among other products.