Kerrygold butter found to use corn & soy feed. Kerrygold cows get 10-15% supplement feed: corn, soy, rapeseed, citrus pulp. Some of it GMO. But turns out Kerrygold is actually one of the better brands compared to industry average: - 39% corn - 16% DDGs (ethanol byproduct) - 13% soybeans Health impact: - Grass-fed dairy: 1:1 omega-6:3 ratio - Conventional dairy: 5.7:1 ratio Americans now eat 10-15:1 omega-6:3 (should be 1-4:1) with 15-20% of our diet coming from linoleic acid What to look for: -