Diagnosis
Standardization has calculated a negative quantity for this item,although it is an input item. However, input items must always havepositive quantities. One cause of this result may be that one or moretarget values are too large or too small. For example, the fixed itemshave a fat content of at least 10g and the target value for fat wasspecified as 2g.

Procedure
Adjust the target values or use fewer or different nutrients forstandardization.