Hi Julie... Welcome to YT!!!! Nice to have you here!
As for the wealth on information I feel just like you. One day I think I found THE best food and then my babies don't like it...
Trial and error... that's it... but there are a few guidelines you can pick from all the info:
- all grocery store brands are not really good...
- there should not be a lot of 'byproducts', wheat, corn and salt in a good food and the 'beef-', 'lamb-', 'turkey' and/or 'chicken-
meal' contents should be under the first three ingredients mentioned...
As for the shampoo it needs to be either a special doggie product (but not 'Hartz') or a very good human shampoo. Mine do really good with the Aveno oatmeal shampoo...