Walk into any supplement store and it’s overwhelming. Rows of pre-workouts, amino acids, test boosters, fat burners, and other shiny tubs promising to change your game overnight. But the truth is, most of it is noise.

At Avos Strength, we keep it simple. If you’re training hard and want to support performance, recovery, and overall health, there are only two supplements that actually matter.

And they aren’t flashy.

1. Protein Powder: The Most Underrated Tool in the Game

You don’t need protein powder to build muscle, but it can make it a lot easier to get enough protein — especially if you're busy, training often, or just not eating enough.

Protein is the building block of muscle. Without it, recovery slows down and progress stalls.

The general recommendation for active individuals and athletes is 1.6 to 2.0 grams per kilogram of body weight per day. If you're trying to put on muscle or training at a high volume, aim for the higher end of that range.

This means a 70-kilogram athlete should be getting 112 to 140 grams of protein daily. That’s a lot of chicken breast and Greek yogurt — and that’s where a high-quality protein powder can help.

Look for a product that:

Lists all essential amino acids (a complete protein)
Contains at least 20 to 25 grams of protein per serving
Comes from a reputable source like whey isolate, casein, or a solid plant-based blend with a full amino acid profile

If you are a competitive athlete, make sure your product is third-party tested and carries a Safe for Sport stamp such as NSF Certified for Sport or Informed Sport. This ensures there are no banned substances and that what's on the label is actually in the product.

Using protein powder post-training or to fill in gaps throughout the day is one of the easiest and most cost-effective ways to hit your daily targets.

2. Creatine: The Most Researched Supplement in the World

Creatine is a naturally occurring compound made from three amino acids: arginine, glycine, and methionine. It’s stored in your muscles and used to quickly regenerate ATP, the energy source your body relies on for short, powerful efforts like lifting, sprinting, and jumping.

If there’s one supplement that lives up to the hype, it’s creatine. It's been studied for over 30 years and is backed by more peer-reviewed research than any other supplement on the market.

Creatine helps you:

Perform more reps at a given load
Recover faster between explosive efforts
Improve high-intensity performance over time

What’s even more exciting is the emerging research around brain health. Studies now suggest creatine may improve cognitive function, especially under sleep deprivation or mental fatigue, and may play a protective role in aging populations.

How to Take It

For muscle saturation: Take 5 grams of creatine monohydrate per day. No need to load or cycle it.
For brain health benefits: Newer research suggests 10 to 20 grams per day may be more effective, though higher doses should be discussed with a healthcare provider or sport nutritionist.

As with protein powder, if you're a competitive athlete, use a creatine product that is NSF Certified for Sport or Informed Sport. This ensures the supplement is free from banned substances and batch tested for safety.

Creatine is:

Safe
Inexpensive
Naturally occurring (your body makes it, and you also get it from meat and fish)
Non-hormonal
Effective for both men and women

Just take it consistently. It doesn’t need to be timed perfectly with your workout, and you don’t need a fancy pre-workout mix to get the benefits.

Don’t Get Caught in the Supplement Hype

BCAAs, pre-workouts, collagen, fat burners — they all have their place in the marketing stream, but they are not essential.

If you’re on a budget or just want to stick with what works, protein and creatine will give you the most return on your investment. Everything else is secondary.

And most importantly, no supplement replaces hard training, smart programming, and real food.

Build your foundation first. Let supplements support that — not define it.

Why Leucine Matters Most for Muscle Growth and Recovery

Let’s talk about protein. More specifically, let’s talk about leucine.

Whether you're working to build strength, improve endurance, or maintain lean muscle as you age, your ability to recover and grow depends on one key trigger: muscle protein synthesis. And one amino acid plays the leading role in that process.

What Is Leucine and Why Does It Matter?

Leucine is one of the essential branched-chain amino acids (BCAAs). It acts as the “on switch” for muscle repair by activating a molecular pathway called mTOR, which tells your body to start rebuilding muscle tissue after training.

Without enough leucine, even a high-protein meal may not fully trigger muscle protein synthesis. This is why protein quality and amino acid composition matter just as much as hitting your total protein intake.

Why It’s Especially Important for Women

Women tend to have lower baseline rates of muscle protein synthesis compared to men, partly due to hormonal differences. For example, muscle breakdown increases during the luteal phase of the menstrual cycle, just before your period.

This is one area where Dr. Stacy Sims' work is helpful. In her book ROAR, she highlights the importance of choosing leucine-rich protein sources, especially after strength training or during high-hormone phases when recovery can be compromised.

The research supports this. For both performance and recovery, women benefit from being more deliberate with post-training protein intake.

What to aim for: At least 2.5 grams of leucine in your post-training meal or shake. This is typically the minimum needed to fully activate muscle repair pathways.

How Much Protein Do You Actually Need?

For active individuals, the research-supported recommendation is about 1.8 to 2.2 grams of protein per kilogram of body weight per day.

That protein should be spaced throughout the day across three to five meals, with roughly 20 to 40 grams of protein per meal depending on your size, goals, and training demands.

For both men and women, leucine still matters. If you don’t hit the leucine threshold in a meal, your body may not initiate the repair process efficiently, even if you meet your total daily intake.

What Plant-Based Athletes Need to Know

If you follow a plant-based or vegan diet, this is something to pay attention to. Many common plant-based protein sources like pea, rice, and hemp contain less leucine per serving than whey or other animal-based proteins.

Some vegan protein powders contain only 1 to 1.5 grams of leucine per serving. That is not enough to reach the 2.5-gram mark that research suggests is needed to trigger muscle protein synthesis effectively.

If your protein label doesn’t list leucine content, check the brand’s website or reach out to the company directly. You may need to supplement with isolated leucine powder or choose a blend that brings you closer to that threshold.

Simple Strategies That Work

If you are not vegan, choose a high-quality whey isolate after training. Most servings contain around 2.7 grams of leucine.
If you are vegan, look for blends that list leucine content and get close to 2.5 grams, or add free-form leucine to your post-workout shake.
Do not rely on BCAAs alone. Always aim for a complete protein source after lifting or intense training.
For women, be especially strategic about recovery nutrition during the luteal phase, when muscle breakdown is elevated.

The Bottom Line

Leucine is not just another buzzword. It is one of the most important amino acids for recovery and muscle growth.

Whether you eat animal protein, plant-based protein, or a combination of both, what matters most is that you are getting enough leucine to support the work you are putting in at the gym or on the field.

If you want to build muscle, maintain strength as you age, or support your training with purpose, start by paying attention to your post-workout protein. Total intake matters, but leucine matters even more.

Train. Play. Repeat.