Kick-starting your morning with a healthy breakfast is imperative - it is, after all, the most important meal of the day. Does breakfast in less than 10 minutes sound familiar? 

It's far too easy to grab something on your way to work. I'm guessing this will usually be a bagel, croissant or other pastry, as that's what I'm often tempted to pick up when I'm running late. But eating a healthy breakfast is essential for maintaining energy and attention levels, as well as for helping you avoid snacking, but there are variations you should focus on, depending on diet, fitness regime and your ultimate goals. 

We've chosen some of the most common athletic challenges and checked out what healthy breakfast choices are at your disposal when training.

1. The muscle-builder's breakfast
OK, so you can go the protein shake route, but really? They're unpleasant and, unless you're a complete muscle nut, no fun.