Organic sources are better for your health, the environment and the earth in general. Compared to mass-produced and drug injected sources, organic protein sources offer more "good" fats, and fewer "bad" fats. They are richer in antioxidants; including vitamins E, beta-carotene, and Vitamin C. Organic protein has also been found to be leaner.
Want proof? A 6-ounce steak from a grass-finished steer can have 100 fewer calories than a 6-ounce steak from a grain-fed steer. If you eat a typical amount of beef (66.5 pounds a year), switching to lean grass-fed beef will save you 17,733 calories a year--without requiring any willpower or change in your eating habits. Now that's a supermodel attitude!