Why is grass-fed beef better for us than grain fed beef? Whilst not only tasting better, the fat profile of grass-fed beef is healthier. Most western diets have an average ratio of 16+:1 of Omega 6 to Omega 3 fatty acids. A healthy ratio is around 4:1. Grass-fed beef usually averages around 3:1, whilst grain fed can be as high as 20:1 . Put simply, grass fed is the healthier and tastier option.