BCAAs vs. EAAs: What's the Difference, and Do You Need Both?

Quick answer: The Difference Between BCAAs and EAAs

Yes, you need both. BCAAs (branched-chain amino acids) are three of the nine essential amino acids: leucine, isoleucine, and valine. EAAs (essential amino acids) include all nine, BCAAs included. Both play a role in repairing and rebuilding muscle after exercise, so getting enough of each can mean less soreness and faster recovery. Since BCAAs are already part of a complete EAA profile, you don't have to pick one over the other. A supplement with all nine essential amino acids, like Muscle Health PLUS, covers both.

BCAAs vs. EAAs at a Glance

How Are BCAAs Different From the Other Essential Amino Acids?

Branched-chain amino acids get their name from their branched chemical structure. Unlike the other six essential amino acids, BCAAs are metabolized directly in your muscle tissue instead of your liver, which gives them an outsized role in muscle repair and growth.

Research on BCAAs shows:

• Up to 7-15% less fatigue during and after exercise compared with placebo (study)
  
  

• Up to 33% lower muscle soreness after exercise (study)
  
  

• A 22% greater increase in muscle protein synthesis (the process your body uses to build and repair muscle) from a post-workout drink with 5.6 grams of BCAAs, compared with placebo (study)
  
  

• Increased muscle mass with consistent use (study)
  
  

• Reduced fatigue during and after physical activity (study)

BCAAs are effective on their own for muscle health, growth, and damage repair. Taking all nine essential amino acids supports your overall health, too.

Do You Need the Other Six Essential Amino Acids?

Yes. The remaining six essential amino acids (phenylalanine, threonine, tryptophan, methionine, lysine, and histidine) handle jobs BCAAs don't:

• Producing neurotransmitters
  
  
• Supporting collagen production
  
  
• Regulating immune function
  
  
• Helping your body absorb minerals like zinc and selenium

Together with BCAAs, these six round out the amino acid profile your muscles rely on to recover and grow.

Should You Take BCAAs, EAAs, or Both?

Take both. If muscle health is your goal, a supplement with the complete set of nine essential amino acids, including all three BCAAs, covers muscle-specific repair and whole-body function in one product.

If you're timing intake around workouts, BCAA levels peak in your blood 30-60 minutes after you take them, so a dose before or shortly after training is a reasonable starting point. For a deeper look at timing, see When to Take BCAA Powder.

FAQ: BCAAs and EAAs

Can I take BCAAs and EAAs together?

Yes. Most complete amino acid supplements already combine them, since BCAAs are part of the nine essential amino acids.

Do I need a supplement if I already eat complete proteins?

If you consistently eat animal protein or a mix of complete plant proteins, you're likely covering your baseline needs. A supplement helps close the gap around training, recovery, or aging, when your body's demand for amino acids goes up.

What are the nine essential amino acids? 

Leucine, isoleucine, and valine (the three BCAAs), plus phenylalanine, threonine, tryptophan, methionine, lysine, and histidine are the nine essential amino acids.

The PLUS Standard Behind Muscle Health PLUS

Muscle Health PLUS combines:

• All nine essential amino acids
  
  
• Creatine monohydrate for strength
  
  
• myHMB® to reduce muscle breakdown
  
  
• AstraGin® to help your body absorb these nutrients instead of losing them to digestion

Every batch is manufactured to pharmaceutical-grade standards and tested by a third party before it ships, with no artificial sweeteners, dyes, gums, or unnecessary fillers.

Your purchase also supports someone beyond you. Through our Get Health, Give Health program, one purchase means one bottle donated to a child in need.

Shop Muscle Health PLUS and support muscle repair, strength, and recovery.