Flank steak is a popular cut of beef that is known for its rich flavor and versatility. However, there has been some debate about how fatty this cut of meat really is. In this article, we will explore the fat content of flank steak and how it compares to other cuts of beef.

What Is Flank Steak?

Flank steak comes from the abdominal muscles of the cow and is a lean cut of meat. It is long, flat, and prized for its flavor rather than its tenderness. Because it comes from an area with a lot of connective tissue, flank steak can be tough if not cooked properly.

How Fatty Is Flank Steak?

Flank steak is considered to be a lean cut of beef, with an average fat content of around 6 grams per 3-ounce serving. This makes it a healthier alternative to other cuts of beef that are higher in fat.

However, it’s important to note that the fat content can vary depending on factors such as the cow’s diet and how the meat is prepared. For example, if the cow was grass-fed, the meat may have more omega-3 fatty acids than grain-fed beef. Additionally, if you marinate your flank steak in oil or serve it with a high-fat sauce, the overall fat content will increase.

Comparing Flank Steak to Other Cuts

When compared to other cuts of beef, flank steak falls somewhere in the middle in terms of fat content. Here are some examples:

  • Ribeye: This popular cut has an average fat content of 22 grams per 3-ounce serving.
  • T-Bone: Another popular choice, T-bone steaks contain around 17 grams of fat per 3-ounce serving.
  • Sirloin: Sirloin steaks are a leaner option than ribeye and T-bone, with an average of 10 grams of fat per 3-ounce serving.
  • Filet Mignon: This is the leanest cut of beef, with an average fat content of just 3 grams per 3-ounce serving.

How to Cook Flank Steak

Now that we’ve established that flank steak is a relatively lean cut of beef, let’s talk about how to cook it. Because it’s a tougher cut, flank steak benefits from marinating before cooking. This will help to break down the connective tissue and make the meat more tender.

When cooking flank steak, it’s important not to overcook it. Because it’s so lean, it can become dry and tough if cooked for too long. The best way to cook flank steak is on a high heat for a short amount of time – around 5 minutes per side for medium-rare.


In conclusion, flank steak is a lean cut of beef with an average fat content of around 6 grams per 3-ounce serving. While this may be higher than some other cuts like filet mignon, it’s still a healthier option than many other cuts like ribeye or T-bone. When cooking flank steak, be sure to marinate it beforehand and avoid overcooking to ensure that it stays tender and juicy.