It's easy to find at the grocery store, and it's an immune-boosting basic. You'll get plenty of nutrients that protect your body from damage. It has vitamins A and C, and the antioxidant glutathione. Add to any dish or top with some low-fat cheese to round out a side dish.
The average adult who exercises for one hour by biking at a moderate pace burns 563 calories, more than double what the average person burns by walking briskly for one hour and about 50 percent more than walking briskly uphill. In addition, biking builds leg strength.
The best exercise to prepare for a hike is good, old fashioned walking. Walking provides both a cardiovascular workout and strengthens the same muscles you'll use on your hike. Begin by walking 30 to 45 minutes three days a week to train for a five mile (eight kilometer) hike. On a fourth day, take a longer walk and increase your distance each week until you're walking about two-thirds of the length of your hike [source: Spilner and Robertson ].