Animal Product Quality
topic
Animal product quality varies substantially by production method — with pasture-raised and grass-fed animals producing meat and dairy with significantly different fatty acid profiles (higher omega-3 content, higher CLA content, more favorable omega-6:omega-3 ratio), different micronutrient content (higher vitamin E, beta-carotene, and fat-soluble vitamins in grass-fed products), and different food safety profiles (lower antibiotic-resistant bacteria prevalence in pasture-raised versus confined animal feeding operation products) compared to conventionally raised animals on grain-based diets.
Role
Animal product quality is the nutritional dimension most consequential for the omega-6 to omega-3 ratio of the diet — because conventionally raised livestock fed corn and soy produce meat with omega-6:omega-3 ratios of 10:1 to 20:1, while grass-fed animals produce meat with ratios of 2:1 to 4:1. The person who has shifted to eating more animal products for protein and fat while consuming conventionally raised products is potentially worsening their omega-6:omega-3 ratio and inflammatory status through the dietary shift they intended as health improvement — a trade invisible without understanding how production methods alter the nutritional composition of animal-derived foods.