Hi bhernandez,
You add ingredients through the Recipe Balancer. Highlight a recipe in the Recipes module and press the Recipe Balancer button on the ribbon. This will open the Balancer module. Add foods by using the Search Food button on the ribbon in the Balancer. When you add a food it will go into the ingredient list at 100 grams. Change the quantity and immediately press the ENTER/RETURN key. The new value for that ingredient will be updated in the database and all the graphs will be updated in real time.
Animal Nutritionist and Lead Developer for Pet Diet Designer