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Deciding Between EAA and BCAA Supplements? What You Should Know

by Eric Gordon 05 Jul 2023
Have you ever heard of EAA or BCAA supplements, but your not sure which one to take? As more and more research points to the benefits of supplementing your diet with either EAA or BCAA, athletes are adding this dietary supplement into their daily routine. But which one should you go with—EAA or BCAA? In this blog post, we’ll break down both kinds of supplements so that you can make an informed decision about which one works best for you. 

What are BCAAs? 

BCAAs, or branched-chain amino acids, are a group of three essential amino acids: leucine, isoleucine, and valine. As essential amino acids, they are essential to our diets and must be obtained through food sources or supplements because our bodies cannot produce them on their own. They are called "branched-chain" because their molecular structure includes a unique branched chain, which sets them apart from the other essential amino acids.

BCAAs are known for their role in muscle protein synthesis, which is the process by which cells build new proteins, including muscle tissue. Specifically, leucine has been shown to activate a key signaling pathway that stimulates muscle protein synthesis. This makes BCAAs a popular supplement among athletes and bodybuilders, as they can help to support muscle growth and repair.

In addition to their role in muscle protein synthesis, BCAAs have also been studied for their effects on reducing muscle soreness and fatigue. They may help to reduce the breakdown of muscle tissue during exercise, as well as improve post-workout recovery. Some studies have also shown that BCAAs can enhance endurance performance.

Giant Edge BCAAs - 60 Servings

What are EAAs? 

EAAs, or essential amino acids, are a group of nine amino acids that the human body cannot produce on its own and must be obtained through diet. These EAAs include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. They are crucial for maintaining and building muscle mass, as well as supporting a healthy immune system, and aiding in the production of hormones, enzymes, and neurotransmitters. Without adequate intake of these essential amino acids, the body may experience muscle wasting, weakened immune function, and even impairments in mental and cognitive health. Furthermore, research has shown that EAAs may also be beneficial for reducing muscle soreness and fatigue, improving exercise performance, and supporting overall health and wellness. Therefore, ensuring adequate consumption of EAAs is essential for maintaining optimal health and well-being.

BCAAs vs. EAAs? 

BCAAs and ECAAs are closely related to our body's protein synthesis process and play a vital role in muscle building. Branched-chain amino acids (BCAAs) consist of three essential amino acids namely leucine, isoleucine, and valine, whereas essential amino acids (EAAs) are a group of nine amino acids that our body cannot synthesize and we need to consume them through our diet. Both BCAAs and ECAAs are important for building and repairing muscle tissue, but they differ in their functions and benefits.

BCAAs are mainly responsible for stimulating protein synthesis, reducing muscle breakdown, and promoting muscle growth. They are also known to improve exercise performance, endurance, and reduce fatigue. Leucine, one of the essential amino acids, is particularly important as it activates the mTOR signaling pathway, which is the key to muscle protein synthesis.

On the other hand, EAAs are essential for our overall health and well-being. They play a crucial role in a variety of bodily functions such as the production of hormones, enzymes, and neurotransmitters. They also help maintain a healthy immune system, promote healthy skin, hair, and nails, and support mental function and mood.

In terms of dietary sources, both BCAAs and ECAAs can be found in high-protein foods such as meats, fish, eggs, and dairy products. However, BCAAs are more commonly found in whey protein supplements, while ECAAs are often found in plant-based proteins.



When taken together, BCAAs and ECAAs offer a comprehensive approach to muscle building, repair, and recovery. The combination of these two supplements provides a full complement of all the essential amino acids that the body requires for protein synthesis. This allows for better muscle recovery and repair, leading to improved muscle growth and overall athletic performance.

Additionally, both BCAAs and ECAAs can help reduce muscle soreness and fatigue following intense workouts. BCAAs reduce muscle damage and inflammation while ECAAs reduce muscle breakdown. Taking them together can help prevent muscle damage and promote faster recovery, allowing athletes to train harder and more frequently.

Giant Edge Mod9 - BCAA+EAA Powder






Giant Performance Whey Protein UPGRAD3 - 5LBS
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