Feed
Is McDonald’s beef grass-fed?
Is McDonald’s beef grass-fed? The US disclosures reviewed here do not establish a lifetime grass-fed diet for its burger patties. “100% pure beef” describes the meat, not the cattle’s feed. Sustainability participation and an antibiotic-use policy answer different questions. For a guaranteed grass-fed choice, look for an explicit lifetime feeding claim.
What McDonald’s actually claims about its beef
These public sources were checked on October 22 and rechecked on October 26, 2026. This guide concerns US burger patties. A statement about another country, a pilot ranch or one supplier does not establish the diet behind your US order.
Scroll sideways to compare the claims.
| Claim or programme | Statement and limit | Primary source |
|---|---|---|
| 100% pure beef | McDonald’s US FAQ describes beef patties without fillers, additives or preservatives, prepared with salt and pepper. This is not a grass-fed claim or a description of the entire assembled burger. | McDonald’s US beef FAQ |
| Lifetime grass-fed diet | No public lifetime grass-fed guarantee for US patties was located in the reviewed beef FAQ and corporate sourcing disclosures. Those sources do not establish an exact finishing ration either. | McDonald’s sourcing disclosures |
| USRSB participation | The company’s historical reporting identifies McDonald’s US as a founding USRSB member. Participation in a sustainability roundtable does not establish a feeding claim for a particular patty. | McDonald’s historical reporting archive |
| Responsible antibiotic use | The linked policy, internally dated December 5, 2022, includes the US. It requires treatment of sick animals and restricts specified uses of medically important antibiotics. It is not a raised-without-antibiotics or grass-fed promise. | McDonald’s beef antibiotic policy, version 3.0 |
Grass-fed, grass-finished and sustainable answer different questions
USDA’s explanation of grass-fed meat covers grass and forage throughout the animal’s life, apart from milk before weaning, and excludes grain and grain byproducts. A photograph of grazing cattle cannot document that whole diet. USDA’s grass-fed explanation.
Finishing is the feeding period before slaughter. To choose beef on that basis, look for a complete feeding claim rather than reading a diet into “pure beef.” Our grass-fed versus grass-finished guide explains what to compare.
USRSB describes its job as improving environmental, social and economic sustainability across the beef value chain. That is broader than a grass-fed standard. McDonald’s current sourcing page also discusses roundtables and farming projects; those activities do not establish a lifetime feed claim for every patty. USRSB’s purpose; McDonald’s sourcing programmes.
What a plant number can tell you
A plant number is useful evidence, but it cannot fill a feeding gap. If you have access to the original meat carton or a photographed label, keep the product name, date and full establishment number together.
- Read the actual mark. Keep every digit and suffix. A supplier’s name alone is not a carton observation.
- Match the plant. USDA explains that the establishment number identifies the plant where the product was produced. Where to find the EST. number.
- Keep the limit. A plant match does not identify the cattle’s ranch, ration or a grass-fed programme. It also does not prove that an unrelated grocery package supplies McDonald’s.
See how to read a meat establishment number. We have not inspected a McDonald’s carton for this guide and do not assign an establishment or farm to your order.
Choose the claim that answers your question
Beef content, feeding and antibiotic use are separate facts. If a lifetime grass-fed diet matters to you, choose beef with that explicit claim. The reviewed McDonald’s US statements do not supply that guarantee. This does not prove that no grass-fed beef ever enters its supply chain.
The linked antibiotic policy permits treatment under veterinary oversight. It should not be presented as evidence that the cattle never received antibiotics, or as a test of residues in a meal. Read the policy’s principles and requirements, pages 3–5.
Questions about McDonald’s beef
Does 100% pure beef mean grass-fed?
No. McDonald’s US pure-beef statement concerns its patties’ composition. It does not specify a lifetime grass-and-forage diet or the finishing ration. McDonald’s US beef FAQ.
Is McDonald’s beef grass-finished?
The reviewed US disclosures do not establish that claim. Grazing during part of an animal’s life would not, by itself, establish grass finishing or a lifetime grain-free diet. USDA’s grass-fed explanation.
Does McDonald’s antibiotic policy mean no antibiotics ever?
No. The linked policy requires sick animals to receive treatment and sets conditions on antibiotic use. It is a responsible-use policy, not a lifetime exclusion claim. McDonald’s beef antibiotic policy.
Can an establishment number prove the cattle were grass-fed?
No. A USDA establishment number identifies a production plant. It does not, on its own, identify a farm or document the cattle’s diet. USDA establishment-number guidance.
This is a review of public claims, not a farm audit, feeding record or laboratory test. How we find the answers.