It’s not about the human PD, it’s about the animal.
- Growing grain to feed to bovines who actually don’t eat grain is obscene. Grow grain to feed humans.
- Feeding cattle grain involves ‘feedlots’ where non free-range cattle stand ankle deep in their own faeces for a minimum of 3 months (in Australia at least- we have rules governing what can be called grain fed)
Oddly, and it may be different for you, grain fed beef is sold as a premium product. You will often pay more for it.
Go grass fed, for the 4 legged animal, not the 2 legged one.