Vitamin B - 12 helps convert food into glucose, making it one of the most important nutrients for sustaining energy levels. (purebarre.com)
She showed me how to use food to sustain my energy levels throughout my intense workouts, replacing my body with what it needs. (pilatesnutritionist.com)
This is great for keeping that «satisfied» feeling we get after eating, meaning you'll have sustained energy levels which is great! (wellnesswithtaryn.com)