Nutrient analysis software can be incredibly expensive. While it's not as comprehensive as most software, the USDA offers a "What's In The Foods You Eat Search Tool" that can help you get info about the nutrient composition of some basic foods. To access it, follow this link and then click on "Online. CLICK HERE to start What's In The Foods You Eat Search Tool in a new window."
Another free online resource for nutrition info is Calorie King. It has less information about what's in foods, but has more foods listed, especially commercial brands.
