Leucine – The Amino Acid for Muscle

If your goal is to protect your health, strength, and weight long-term, this is something you need to know.

Leucine. It’s one of the most important amino acids your body relies on, especially as you get older.

Why Does Leucine Matter?

Starting around age 30, we naturally begin to lose muscle mass. And muscle does more than keep you strong—it helps burn calories, regulate blood sugar, and maintain a healthy metabolism. Losing too much muscle can make it easier to regain weight and harder to stay healthy.

What Does Leucine Do?

Leucine is the key amino acid that turns on muscle protein synthesis—your body’s process for building and repairing muscle. Without enough of it, your body can’t effectively maintain or build lean muscle tissue.¹

How Much Leucine Do You Need?

The research is clear:²

👉 Adults over 40 need about 2.5 grams of leucine at a time to properly stimulate muscle growth.
👉 That’s best achieved by getting 30 grams of high-quality protein per meal—three times a day—to consistently support your muscle health.

The good news? You don’t need a separate leucine supplement to do it.

Unjury® Protein Powder delivers 3 grams of leucine in every 30-gram serving of protein.

You can also meet this target with about 4 ounces (cooked) of chicken, fish, lean beef, or eggs. 

Want to Learn More?

Check out our simple, research-backed 30-30-30 approach for balanced protein intake and muscle support HERE.

Ready to get started?
Fuel your body with the highest-quality protein, rich in muscle-supporting leucine. [Buy here.]

References

1. Zaromskyte G et al. Front Nutr. 2021;8:685165.
2. Phillips SM et al. Adv Nutr. 2021;12(2):578.