Description: Two thick, heavily marbled raw Wagyu steaks on a wire rack over a salted metal pan

Is Wagyu Beef Grass Fed? A Guide to Feed and Akaushi

So, is wagyu beef grass fed? Yes, it can be, because Wagyu identifies cattle genetics, while grass-fed describes how cattle are fed. Our Akaushi Wagyu is pasture-raised, 100% grass-fed, grass-finished, and grain-free in western Colorado.

What this article covers

●       What Does the Feed Standard Actually Say?

●       Genetics and Feed Are Two Different Decisions

●       Decoding the Label: Grass-Fed, Organic, and Biodynamic

●       Akaushi vs Wagyu: A Lineage Within the Family

●       Choose the Raising System Behind the Steak

●       How to Cook a Leaner Grass-Fed Wagyu Steak

What Does the Feed Standard Actually Say?

There's no contradiction between Wagyu and grass-fed beef. They're just answering different questions. The USDA grass-and-forage standard is specific: cattle eat only grass and forage (that's grazing or harvested feed like hay) for their whole lives, with the sole exception of milk before weaning. No grain, no grain by-products, full stop. And when a producer also says “grass-finished,” that's them telling you that forage stayed the diet all the way through the final stretch before harvest, not just for most of the animal's life.

At Nutrient Farm, only grass is ever available to our cows. They graze certified USDA Organic pastures, and our product pages state the complete protocol plainly: 100% grass-fed, grass-finished, pasture-raised, grain-free, hormone-free, and antibiotic-free. Nature takes its course in a low-noise, low-stress environment where animals are never chased or shouted at.

Description: Akaushi Wagyu cattle grazing outdoors.

100% grass-fed, grain-free, from birth to harvest.

That's the standard. But knowing the standard doesn't tell you whether one specific animal actually met it. Genetics and feed are two separate decisions that a producer makes.

Genetics and Feed Are Two Different Decisions

The Wagyu name alone can't tell you whether the cattle ate grain. Grain-finishing is a decision made late in an animal's life, not a different breed. One producer might finish Wagyu on grain, while another might keep the same genetics on grass and forage for life. Both are still Wagyu. That's exactly why the feeding claim matters more than the breed name by itself, so look for the actual words on the label (grass-fed, grass-finished, grain-free) rather than assuming “Wagyu” tells you the whole story. We break down what each of those terms actually means in the next section.

The same logic applies at the grill. Don't try to predict a steak's richness from the breed name alone. Look at the actual cut. Visible intramuscular fat (marbling) behaves differently than a leaner profile. The amount of marbling that meat can potentially have is determined by the individual animal's genetics. The amount of marbling that you actually physically see in the meat is determined by the animal's feed, and the cut and how you cook it decide how much of it you actually taste.

Decoding the Label: Grass-Fed, Organic, and Biodynamic

These terms each answer a different question about how this beef was raised. Don't assume one term implies the others. A producer can raise grass-fed cattle without being certified organic, or claim biodynamic practices without either of the other two. Our pastures are certified USDA Organic. “Grass-fed,” “grass-finished,” and “grain-free” describe what the cattle eat. We use “biodynamic” to describe whole-farm practices that treat soil, plants, and animals as one connected system, not a separate certification on the beef itself. Here's what each one actually means:

●       Grass-fed identifies grass and forage as the feed rather than grain.

●       Grass-finished states that the forage diet continued through the finishing period.

●       Grain-free emphatically excludes grain from the feeding program.

●       Organic refers here to the USDA-certified status of our pastures.

Once you know what's on the label, the next question is what's actually out in the pasture, and that's where genetics comes back in.

Akaushi vs Wagyu: A Lineage Within the Family

Wagyu is the broader family. Akaushi is one of its four breeds, the one known in Japan as “The Emperor's Breed” for its marbling, tenderness, and rich flavor. USDA's certified beef listings even keep them separate, with distinct listings for Wagyu generally and for American Akaushi specifically. For anyone trying to decide between Akaushi beef and Wagyu, Akaushi is the more specific lineage name. To put it simply, all Akaushi is Wagyu, but not all Wagyu is Akaushi.

We are proud and fortunate to have stewardship of this rare, extraordinary lineage. Our cattle are 100% fullblood, meaning their ancestry is entirely Akaushi rather than a 50% Wagyu and 50% Angus cross. You can meet our Akaushi lineage, then explore Akaushi Wagyu Beef, including steaks, ribs, brisket, burgers, ground beef, organ meats, and bulk boxes. We care and you’ll taste the difference!

Description: Raw marbled beef steaks and ground-beef patties arranged on a stainless-steel worktable.

Genetics tell you what the animal is. The raising system tells you how it actually lived, and that's the part you can act on when you're deciding what to buy.

Choose the Raising System Behind the Steak

Don't stop at the breed name. Choose the type or breed you want, then check that its diet and raising practices hold up, claim by claim. At Nutrient Farm, that means rare Fullblood Akaushi genetics paired with certified USDA Organic pastures and an emphatic protocol: grass-fed, grass-finished, grain-free, cake and candy-free (no oilseed-meal blocks or sugary processing waste used as cheap filler feed). Thank you for supporting clean food, careful stewardship, and animals living as Nature intended.

Once you've picked beef you trust, cooking it well is how you actually get your money's worth out of it.

How to Cook a Leaner Grass-Fed Wagyu Steak

When a particular Wagyu cut has a leaner profile, use high heat and keep temperature control tight. That gives you a browned exterior without leaving the steak over the heat any longer than necessary. Getting this right depends on your setup as much as your technique. A grill that holds steady heat and a thermometer you actually trust make the difference between a good sear and a scorched one. Whether you're a serious pitmaster or just someone who wants to cook a better, healthier meal at home, the right tools make the job easier and a lot more enjoyable. DDR BBQ Supply carries grills, smokers, and the rest of the gear that makes this kind of precision possible. A reliable instant-read thermometer is just as important as the cooking surface.

1.     Pat the steak dry with a clean paper towel. A dry surface browns more efficiently.

2.     Preheat a heavy skillet or grill for direct, high heat. The goal is a fast sear rather than a long warm-up on the meat.

3.     Season the steak just before it meets the heat. Simple seasoning lets the beef remain the center of attention.

4.     Turn the steak as browning develops. Cut thickness and fat distribution are better guides than a fixed timer.

5.     Check the center with an instant-read thermometer. USDA beef safety guidance sets 145°F as the minimum internal temperature for steaks.

6.     Rest the steak for at least three minutes before slicing. This pause completes the USDA safety method and lets the steak settle.

Description: Close-up of a marbled raw beef steak cooking on dark grill grates.

A few more questions come up often when people are shopping for Wagyu:

Frequently asked questions

Can Wagyu cattle be raised entirely on grass?

Yes. Wagyu describes cattle genetics, not a mandatory feeding system. A producer can raise Wagyu entirely on grass and forage without grain. Nutrient Farm’s Akaushi Wagyu is 100% grass-fed, grass-finished, and grain-free.

What does fullblood Akaushi mean?

Fullblood means every generation in the animal's recorded ancestry is Akaushi, no crossbreeding anywhere in the line. Producers cross Akaushi with other breeds like Angus because crossbred cattle are cheaper to buy and raise, and the cross can still be sold as “Wagyu” at Wagyu prices. Nutrient Farm raises 100% fullblood Akaushi Wagyu, the real thing, not the cheaper cross.

Are grass-fed and grass-finished the same claim?

Not necessarily, and they don't always show up together on a label. “Grass-fed” just tells you the feed cattle received at some point. “Grass-finished” confirms that forage was the animal's diet all the way until harvest. If a producer only claims “grass-fed” and leaves out “grass-finished,” that's worth noticing: the animal may have been grain-finished, and grass-fed alone shouldn't cost the same as the fuller grass-finished claim.

What temperature should a Wagyu steak reach?

USDA's Food Safety and Inspection Service (FSIS) sets 145°F as the minimum internal temperature for beef steaks, with at least a three-minute rest afterward. Use an instant-read thermometer to check. Color and cooking time alone don't guarantee that the internal temperature is high enough to be safe to eat.