We stopped for a rest, to drink some water and eat a bite of food to keep up our energy.

"I think nutrition-wise he'll know what to do to keep his energy up during the day."

If it's low, aim for 18 milligrams of iron a day to keep your energy up.

You may not have much of an appetite, but it's important to consume calories to keep your energy up.

How does she keep going - keep up her energy?

She almost never sleeps, and takes sudden food breaks to keep her energy up.

I have to keep up my energy, but in this business I also can't let myself go.

We'd found that protein worked best at keeping my energy up.

What do you eat to keep your energy up during rehearsals and before a show?

"It's been an amazing way for me to keep my energy up."