As a dietitian and mom, I focus on boosting my kids' immune system during cold months. Here's what I buy.

As a dietitian and mom, I focus on boosting my kids' immune system during cold months. Here's what I buy.

The author buys certain Costco items to keep her family nourished and protected during the cold months.Courtesy of the authorI'm a dietitian and parent of a newborn and a toddler.As we head into cold and flu season, I'm stocking up on my favorite immune-boosting foods.My favorite things to get at Costco include POM Wonderful 100% pomegranate juice and canned tomatoes.As a parent of little ones, I know just how debilitating catching the flu can b…