By Fresh n' Lean, the nation's largest organic meal delivery company

Flu season is here – and food is one of your best ways to fight back. More than 2.6 million flu illnesses are estimated nationwide so far this flu season, the Centers for Disease Control and Prevention reports.

While the flu vaccine can help prevent the flu or weaken its impact, an immunity-boosting diet is also beneficial. Here are eight dietary tips to help you avoid getting the flu.