The 10 best lunch options to keep you from passing out at your desk

What you eat for lunch affects your productivity for the rest of the day.

High-fat, high-sugar lunches make us sleepy and have low energy by 3 p.m., says Lisa De Fazio, a healthy lifestyle expert and registered dietitian, so it's important to go heavy on the protein and healthy fats and easy on the carbs when choosing what you eat for lunch.

Of course, we can all come up with plenty of excuses to make poor eating decisions during the workday.

Luckily, whether you bring your lunch, buy it, or scrounge something from the noon meeting, there are plenty of healthy lunch options that will keep you from passing out at your desk.