11/20/2025
“Grass-fed and conventional dairy provide roughly the same amount of calories from protein, fat, and carbohydrates, but there may be additional benefits to consuming grass-fed products.
Grass-fed dairy has higher amounts of beneficial omega-3 fatty acids and fewer omega-6 fatty acids. Grass-fed milk also contains more conjugated linoleic acid (CLA), beta carotene, and vitamin E. However, the nutrient profile of grass-fed milk can change depending on the animal’s geographical location, climate, and the quality and amount of the grasses consumed.
Although the term “grass-fed” doesn’t have an official definition, it generally refers to dairy from cows fed a diet of grass and other forage plants. Importantly, a grass-fed diet excludes any grain or grain by-products.
It may also be helpful to know that “grass-fed” and “pasture-raised” are distinct terms. The former refers to an animal’s diet, while the latter refers to where it lives and grazes. Grass-fed animals are pasture-raised and must have continuous access to pasture during the growing season. However, it’s common for pasture-raised animals to also eat grain as part of their diets.
Some people prefer the taste of grass-fed options over conventional dairy, which is another consideration when making your decision. When choosing grass-fed dairy, look to the American Grassfed Association for grass-fed dairy standards and labeling”
- Catherine Donnellan, RD
