Mount Laurel, N.J. ? The Campbell Soup Co.’s kid-oriented soups, which feature characters such as Dora the Explorer and Batman on the cans, are getting their second sodium reduction in three years, the company announced Monday.

This time, the 12 soups for kids will have 480 milligrams per serving, which means the company can legally label them as healthy foods for the first time.

“Your kids can enjoy Dora the Explorer even more,” said Douglas R. Conant, Campbell’s president and chief executive, said in an interview. “They’ll be down to heart-healthy levels.”

For Camden-based Campbell’s, high sodium levels have been a big health concern for decades for products that are otherwise generally healthy.

Two years ago, the company began using sea salt – where it comes from is kept secret – to reduce sodium in a number of its products. The sea salt is being used in a growing number of soups, as well as SpaghettiO’s pasta. The company has also reduced sodium in V8 juice.