Before or After?

I found this online:

Food and Exercise - Try having a small smoothie (made with some protein powder, frozen fruit and water) before exercise if you don't feel like eating. HYDRATION is key and you should drink at least 5 ounces for every 15 min of exercise. If you are working out more than 45-60 minutes, a sports drink such as Knudsen's Recharge is important. Post work-out, a protein shake/smoothie as described again within 30 minutes is best to replete your glycogen stores.

Found this too:

I am not an expert by any means, but have asked several dietitians about this and read quite a bit on how the body works in the morning and the general guidance I have been given is that you should eat something before you exercise in the morning or you can actually be doing more harm than good.

During the day, you are supposed to eat every 3-4 hours, at night, you dont have to eat because your body gets fuel from stored glycogen while you are sleeping. The glycogen works for 7-9 hours, but once you are awake and active, the glycogen is either gone or turned off. When you start working out without eating, your body assumes their is a food shortage and will burn muscle and hang on to fat for dear life.So, while you are working out to build muscle and burn fat, the exact opposite happens if you dont eat something first.

I exercised for years first thing and then ate something later in the morning (sometimes not until lunch). When I went to the Corporate Athlete program I was shocked at how high my body fat was. I was in pretty good shape and in the middle of my weight range for height, but my body fat was 40%! When I talked it through in detail with the nutritionist and trainer, they said it was probably driven by exercising without eating.

I dont think you have to eat much. I sometimes eat 1/2 an energy bar, handful of nuts or drink a protein shake and then have something more substantial after my workout. I just eat enough to let my body know- Yes- there is food around, so please burn the fat and build the muscle :)

I think what I'll do is drink about a third of my smoothie before I walk and then the other two thirds after my walk. As long as the smoothie combined with walking doesn't upset my stomach, this sounds like a good plan to me.