When you think of the period of time ½ hour to 2 hours after lunch what comes to mind? Is it a time of energetic productivity or do you find that your energy takes a dive right after lunch? Does the thought of a nap, a half hour after lunch sound like the best thing in the world? If you do, then you most likely need to change what you are eating.
Some people can get away with the combination of protein and carbohydrates at lunch and still be energetic, others will have to look for combinations that include limited to no carbohydrates. This recommendation of carbohydrate restriction does not include vegetables. For many people carbohydrates are best eaten at dinner time right after your workout!