Meat (beef, chicken, pork) is naturally gluten-free, however any time preservatives are added, you’ll need to double check it remains gluten free. I prepare the meat recipe within a day to avoid as many histamines as possible, and always freeze leftovers that night. Any ground beef I use is organic, which is easily found in grocery stores now as well as Costco. Grass fed is always the preference, however we make our purchases by what we can afford… always keeping our eyes out for a good sale.