Wholegrain rice provides slow-acting carbohydrate, which means energy is released slowly and steadily into the bloodstream once you have eaten it. This makes it the perfect pre-exercise meal to have a few hours before you hit the gym. The green vegetables and herbs are full of vitamins that help convert food into energy. They will also boost your immune system and improve your sense of well-being, making your exercise session less of an ordeal and much more enjoyable.