We all know that exercise and physical activity are part of any weight loss/maintenance program.  But working enough exercise into a busy schedule can be tricky – especially while also trying to juggle healthy meal planning. Without forethought, it's easy to   "bottom out" after heading into a workout on an empty stomach – or to finish dinner and feel too full for an evening jog.

The trick is to time eating and physical activity to reap the most rewards from each. The right timetable is variable, as there are several factors to consider: How long will you be exercising, what time of day, what kind or exercise and what level of intensity.

I hear this question all the time. And the answer seems to be different for everyone. Here's a recent note from Michelle Z:

Subject: Question about eating prior to a workout

Hi Cheryl

I have a problem that makes it hard for me to go back the gym. First of all, I am a 28 year old female, 5'8", currently weigh 234 lbs.
I've worked out after eating, small or large meal, and i've worked out without having eaten for hours.