grain free

Hi, so I have 4 sows (2 3-month olds, 2 5-month olds) and I’d love to know the healthiest pellet I can easily source for them in the uk. They currently eat burgess mint which they adore and our vet seemed happy with. But have seen there’s lots of options out there, including grain free, cold...

* Disclaimer: This is only a theory that I have come up with. It is not a diagnosis. I am not a medical professional or veterinarian. I made an effort to use reputable resources. I have provided references in relation to my ideas. This is my own research. Please know, I am not forcing the idea...