Trying to understand food product test requirements can be difficult – the choice of options can seem confusing, the terminology bewildering andifference between iron bisglycinate and ferrous sulfateglycinate chelate irond the results occasionally without context. It is possible to overcome much of the confusion arising from product testing with frank, detailed discussion between customer and laboratory prior to performing the analysis; this will ensure the best advice is given and the most suitable tests are performed. This should start with the food operator or manufacturer establishing what information they want from their tests.