YES, you do need to eat after a workout!The 14 Best Things To Eat After A Workout. These supply nutrients like proteins, carbohydrates, vitamins and minerals which help restore your energy and build muscles after a workout.
Nutrition tips - Food weight equivalent to calorie count: AVOID empty calories! The key point is the amount of Nutrients (specially Phytochemicals) per 200 calories. Broccoli and Mini Peppers probably have the most nutrients on this list.