An older woman reviews her progress with her trainer as she fuels up with an amino acid supplement to help support her strength training goals.

Best Amino Acid Supplements For Older Adults To Get Strong

How to support muscle growth with Amino Acids at 55+

With so many health terms, supplements & strategies out there it can be overwhelming trying to understand it all. So today we’re going to unpack just exactly what “amino acids” are, what they do—and what the best amino acid supplements for older adults are.

What Are Amino Acids?

You may have never heard the term “Amino Acids” before, but you’ll become quite familiar with them as you build and maintain your strength. Simply put, amino acids are the building blocks of proteins and necessary for many bodily functions. Including:

As our bodies use protein to build muscles, keeping it fueled with amino acids assists and encourages more muscle growth in a healthier way.

Benefits Of Taking Amino Acid Supplements At 55+

The fuel our bodies need to build and maintain muscles isn’t endless. That usually becomes apparent in our older years. Which is why supplements, specifically amino acid supplements, are such a great tool when you’re trying to build muscle in your older years. These supplements help your body create more protein which is absolutely crucial when your goals involve supporting your muscles or getting stronger overall.

The Most Important Amino Acids For Older Adults

There are almost as many amino acids as Baskin Robbins has ice cream flavors. But our bodies can’t utilize all 20 different kinds. Instead there are 9 that are essential, and of those 9 there are 4 seniors should be focusing on:

1. Leucine

A crucial amino acid for muscle protein synthesis which helps maintain muscle mass and strength in older adults.

2. Glutamine

Supports immune function and gut health, which are vital for overall well-being, especially in seniors.

3. Arginine

Enhances cardiovascular health by improving blood circulation, which is essential for maintaining energy levels and overall vitality.

4. Lysine

Aids in calcium absorption, supporting bone health and preventing osteoporosis, a common concern among seniors.

The Best Amino Acid Supplements For Older Adults

With so many supplements out there, all with their own benefits, it’s hard to sort through and find the ones best for you. To help you narrow it down, we’ve created a shortlist of 5 amino acid supplements helpful for older adults:

Nutricost Pure: L-Leucine Powder


  • Affordable
  • Leucine Amino Acid Based
  • Mixes well


  • Can affect taste
  • Smell

Healthy Origins: L-Glutamine Powder


  • Performance
  • Quality
  • Glutamine Based


  • Availability
  • Can be hard to open

Biotics Research: Amino Acid Quick Sorb


  • Easy to take
  • Taste
  • Arginine based


  • Small bottle can be misplaced
  • May need to order regularly to stay supplied

Now Foods: L-Lysine


  • Capsules
  • Lysine based
  • Value


  • Large capsules
  • Can get stuck in the throat

Driven Nutrition: Branch-Chained Amino Acids with Glutamine


  • Large container
  • Flavour
  • Mixes well


  • Cost
  • May be too sweet for some

Keeping your body fueled with amino acid supplements is a great way to make sure you have what your body needs to build muscle. From powder to capsules, there are plenty of ways to get your amino acids. The best amino acid supplement for older adults is the one that helps you reach your goals. Figure out what you want to support most, and find the right supplement to do that.

Amino Acid Supplements are fantastic when you want to build muscle–and if you want to start getting stronger today, check out this 7 Day Core Strength Class!