From "As Purchased to "Edible Portion" How to Analyze a Recipe Using a Nutrient Database. Purchasing nutrient analysis software and learning how to use the program is only useful if you have the knowledge to convert "as purchased" ingredients to the "edible portion." This book describes how to read a recipe and enter the correct ingredients and amounts, in order to provide an accurate nutrient analysis. The book is an essential tool for anyone working in nutrient analysis. Recipes are usually written based on what the consumer needs to purchase. The individual analyzing the recipe must evaluate the recipe based on the actual food-ready-to-eat (unless the food is meant to be eaten whole.) A nutritional analysis program cannot cook or prepare meals. A person must have skills in Food Science, Culinary Arts, Nutrition, Cooking and Preparation Techniques, Purchasing Guides, Yield Factors, and Nutrient Analysis Software.