Here is the reply I received after sending screen shots of the analysis that they requested
"Thanks for getting in touch and sharing these screen shots with us. As I previously mentioned in response to your Facebook message, we do strongly encourage dog owners to do as much research as possible before selecting a dog food for their pet.
All About Dog Food.co.uk seems to be a very thorough and informative website. However I would like to point out that the analysis provided to you, based on your dogs feeding plan information, is based on the ingredients included in the blend and not the actual nutritional value.
We try to make it as easy as possible for our customers to know exactly what is in their dog's tailor-made blends. If you would like to have a quick look on the tails.com website under the section of 'Our Food', you will see a complete A-Z breakdown of all the ingredients that we may use. We may, for example, use maize gluten in a dog's blend, as it is easily digestible and a fantastic source of protein. Unfortunately the inclusion of these ingredients do result in a lower score on the All About Dog Food calculator.
At Tails.com, we create tailor-made blends that deliver the optimum nutrition just for your dog, then we gradually evolve them over time to reflect your dog's changing nutritional needs as he ages. Our number one priority is the health, happiness and well-being of your dog. So we're confident that tails.com is the best dry food solution available.
If there is anything else that I can help you with, or any further questions that you would like to ask, I would be more than happy to help"