Interesting. The apparent improvements made after supplementing with taurine in dogs showing a deficiency and having DCM are promising.
There still seems to be lots of unknowns. Presumably the condition happens over an extended time period so not sure how useful recording treats and other things fed on top of the diet and keeping the packet info would be. I tend, not to feed the same treats or extras. So what I would record after diagnosis, wouldn't necessarily be what may have contributed towards the disease.
For anyone reading BEG diet is Boutique, exotic-ingredient, and grain-free. The abbreviations were explained at the end.