Helping adults over 50 stay strong, mobile, and independent.
Welcome to Friday's Edition of The Exercise Doc!
Happy Friday!
I hope you've had a wonderful week and are heading into the weekend feeling healthy, energized, and ready to stay active.
This week we're finishing our series on two topics that can make a real difference in how well we age: protein and creatine. While both have been studied for decades, there's still a lot of confusion—and unfortunately, plenty of misinformation.
In today's newsletter, you'll learn how much protein you really need after age 50 to help maintain muscle, support recovery, and stay strong as you age. We'll also discuss why not all creatine is created equal and what you should look for if you're taking a supplement every day. Quality, purity, and independent testing matter more than many people realize.
My goal has always been to help you make informed decisions based on solid research—not marketing hype. Small, consistent choices made today can have a tremendous impact on your strength, mobility, and independence for years to come.
I'd also like to thank our sponsor, Momentous, for supporting this week's content. They produce pharmaceutical-quality, NSF Certified for Sport® creatine that undergoes extensive third-party testing for purity and contaminants. If you've been thinking about adding creatine to your healthy aging routine, they're the company I personally recommend and trust.
📘 Free Bonus: If you haven't already downloaded The Doctor's Guide to Creatine After 50, be sure to grab your free copy. It covers the science behind creatine, who may benefit, common myths, safety questions, and practical tips for getting started.
Thank you, as always, for being part of The Exercise Doc community. I appreciate you spending a few minutes with me each week, and I hope every newsletter helps you live a little stronger, healthier, and more confidently.
Have a fantastic weekend!
To your health,
Dr. Mike
The Exercise Doc
Not All Creatine is Created Equal
For many adults over 50, creatine has gone from being a supplement for bodybuilders to one of the most researched supplements for healthy aging.
Studies suggest it may help support muscle strength, preserve lean muscle, improve exercise performance, and even support brain health. That is why I have been recommending creatine to many of my patients and why I personally take it every day.
But here’s something most people never think about:
Not all creatine is the same.
When you take a supplement every single day for years, quality becomes just as important as the ingredient itself.
Let’s look at why.
The Problem With Assuming Every Supplement Is Equal
If two containers both say “creatine monohydrate,” it’s easy to assume they are identical. They aren’t.
Think about buying olive oil or coffee. Two bottles may have the same name on the label, but the quality of the ingredients, how they were made, and how carefully they were tested can be very different.
The same is true for supplements. Manufacturing standards, purity, and quality testing can vary widely from one company to another. Since creatine is often taken every day for months or years, those differences deserve attention.
Why Manufacturing Matters
One of the biggest differences between creatine products is how they are manufactured.
Some manufacturers meet the minimum standards required for supplements. Others go well beyond those minimums.
Products manufactured in facilities with pharmaceutical-level quality systems typically have tighter controls over:
Raw ingredients
Production methods
Cleanliness
Batch consistency
Product testing
That doesn’t automatically make every product better, but stronger quality systems can reduce the chance of unwanted contaminants or inconsistencies.
For something you may take every morning, that extra attention can provide added confidence.
Why Purity Is Important
When you buy creatine, you want creatine—not unwanted contaminants.
Responsible manufacturers carefully test for substances that shouldn’t be present, including:
Heavy metals
Industrial chemicals
Environmental contaminants
Other impurities
Although supplements sold in the United States must meet regulatory requirements, companies differ greatly in how extensively they test their products beyond those minimum standards.
Many consumers never ask these questions, but they should.
What About Heavy Metals?
Heavy metals such as lead, arsenic, cadmium, and mercury occur naturally in the environment. Small amounts can sometimes find their way into foods and supplements. Reputable manufacturers routinely test for these substances and reject batches that do not meet strict quality standards.
For a product used every day, minimizing unnecessary exposure makes sense.
PFAS: The “Forever Chemicals”
You may have heard about PFAS, sometimes called “forever chemicals.”
These chemicals have been used in many industrial and consumer products because they resist heat, grease, and water.
Researchers continue to study the long-term health effects of PFAS exposure.
While PFAS are found throughout our environment, many companies are now expanding their testing programs to help ensure their products remain as clean as possible.
As consumers, it is reasonable to look for companies that take these concerns seriously.
What About Microplastics?
Microplastics have become another growing concern. Tiny plastic particles have been detected in our air, water, food supply, and even human tissues.
Scientists are still learning exactly what long-term exposure means for our health.
Although no one can completely avoid environmental exposure, choosing manufacturers that emphasize purity and rigorous testing may help reduce unnecessary exposure from supplements.
Why Third-Party Testing Matters
One of the best ways to judge a supplement isn’t by the marketing on the label. It’s by independent testing. Third-party testing means an outside organization evaluates the product to verify that what’s on the label matches what’s inside the container.
That extra layer of accountability gives consumers greater confidence.
It also helps ensure consistency from one batch to the next.
Six-Stage Quality Testing
Some manufacturers now use multiple testing steps throughout the production process rather than testing only the finished product.
This can include evaluating:
Raw ingredients
Ingredient identity
Purity
Manufacturing quality
Finished product
Final verification before distribution
Testing at multiple stages helps identify problems before products ever reach consumers.
For supplements intended for daily use, that level of oversight is reassuring.
Why NSF Certified for Sport Matters
You may have seen the NSF Certified for Sport® logo on certain supplements.
Many people assume this certification is only important for professional athletes. Actually, it benefits everyone.
NSF Certified for Sport means products have been independently tested to help verify:
Ingredients listed on the label are present
Products are screened for many banned athletic substances
Manufacturing facilities meet strict quality standards
Even if you never compete in sports, independent certification provides another measure of confidence in the product you’re using.
Micronized Creatine: Easier to Mix
Another feature worth considering is micronized creatine. Micronized simply means the powder has been processed into much smaller particles.
The benefits include:
Mixes more easily in water
Less settling at the bottom of the glass
Smoother texture
Often easier to drink
Micronization does not make creatine more effective than regular creatine monohydrate, but many people find it more convenient to use every day.
And consistency is what matters most.
The Bottom Line
Creatine remains one of the most researched supplements available for adults over 50. If you’re going to take it every day, don’t focus only on price.
Also consider:
Manufacturing quality
Purity testing
Independent certification
Consistency between batches
Company transparency
Those factors may not be as exciting as flashy marketing claims, but they are important when choosing something you’ll likely use for years.
As I’ve often said, supplements should supplement a healthy lifestyle—not replace one. Regular exercise, adequate protein, good sleep, and healthy nutrition still form the foundation of healthy aging.
Creatine can be a valuable addition to that foundation, and choosing a high-quality product helps ensure you’re getting exactly what you expect.
Doctor Mike’s Take
After reviewing the available research and learning more about how different companies manufacture creatine, I’ve come to believe that quality deserves much more attention than it usually receives.
When I recommend a supplement to my readers, I want to know that it’s produced with high manufacturing standards, rigorously tested, and independently verified. If I’m taking something every day, those are qualities that matter to me.
That’s why I’ve partnered with Momentous Signature Spec® Creatine. It is manufactured in a pharmaceutical facility, undergoes extensive quality testing throughout production, is independently certified through NSF Certified for Sport®, and uses micronized creatine monohydrate for easy mixing.
If you’re considering adding creatine to your routine—or upgrading to a higher-quality option—you can learn more about Momentous Signature Spec Creatine through our sponsor. I only recommend products that I personally use and believe meet the high standards my readers deserve.
How Much Protein Do You Really Need After 50?
If you asked ten people how much protein they should eat each day, you'd probably get ten different answers.
Some people still believe the old advice that a little protein at dinner is enough. Others think everyone needs to drink multiple protein shakes every day.
The truth is somewhere in the middle.
As we get older, protein becomes one of the most important nutrients we can eat. It helps preserve muscle, supports bone health, improves recovery after exercise, and may even help us stay independent as we age.
Yet many adults over 50 simply don't get enough.
Let's talk about how much protein you really need—and how to get it without making nutrition complicated.
Why Protein Becomes More Important After 50
Beginning around age 30, we slowly start to lose muscle. After age 50, that loss often speeds up.
Without regular strength training and adequate protein, adults can lose 3% to 8% of their muscle mass each decade, with the rate increasing as we get older.
This condition, called sarcopenia, isn't just about looking smaller.
It can lead to:
Weakness
Poor balance
Slower walking speed
Difficulty climbing stairs
More falls
Loss of independence
Fortunately, this process is not inevitable. One of the best ways to fight muscle loss is combining resistance exercise with enough high-quality protein.
Why Older Adults Need More Protein
Here's something many people don't realize.
As we age, our muscles become less sensitive to protein. Researchers call this anabolic resistance.
In simple terms, your muscles don't respond as efficiently to protein as they did when you were younger.
That means you generally need more protein to stimulate muscle repair and growth.
This is one reason nutrition recommendations for healthy aging often exceed the minimum daily allowance.
So How Much Protein Do You Need?
The Recommended Dietary Allowance (RDA) for adults is 0.8 grams of protein per kilogram of body weight each day.
However, many experts believe this amount is simply the minimum needed to prevent deficiency—not the amount that supports healthy aging.
For most healthy adults over 50, a practical goal is:
1.0–1.2 grams of protein per kilogram of body weight each day.
If you regularly perform strength training or are recovering from illness, surgery, or injury, your needs may increase to 1.2–1.6 grams per kilogram, depending on your individual situation.
Here's a simple example:
A person weighing 170 pounds (77 kilograms) should aim for approximately:
Minimum: about 60 grams/day (RDA)
Healthy aging target: about 75–95 grams/day
Active older adult: about 95–120 grams/day
These numbers are general guidelines. Certain medical conditions, especially advanced kidney disease, may require individualized recommendations from your healthcare provider.
It's Not Just How Much—It's When
Many people eat very little protein during the day and then consume most of it at dinner.
For example:
Breakfast: 8 grams
Lunch: 15 grams
Dinner: 55 grams
Your body may not use that pattern as efficiently.
Instead, aim to spread your protein throughout the day.
A good target is 25 to 35 grams of protein at each meal.
This appears to stimulate muscle protein synthesis more effectively than saving nearly all of your protein for one large evening meal.
The Best Sources of Protein
Whole foods should be your first choice whenever possible.
Excellent options include:
Chicken
Turkey
Fish
Lean beef
Eggs
Greek yogurt
Cottage cheese
Milk
Tofu
Tempeh
Edamame
Beans and lentils
Nuts and seeds
Eating a variety of protein sources also provides important vitamins, minerals, and healthy fats.
Do You Need a Protein Powder?
Not necessarily. If you can consistently meet your protein goals through food, that's wonderful.
But many adults over 50 struggle to eat enough protein every day.
Maybe you aren't very hungry at breakfast. Maybe you're busy. Maybe you're trying to lose weight.
In those situations, a high-quality protein powder can make reaching your daily goal much easier.
Mixing protein into a smoothie, oatmeal, or yogurt can add 20–30 grams of protein in just a few minutes.
Think of protein powder as a convenient tool—not a replacement for healthy eating.
Whey vs. Plant Protein
One question I hear often is: "Which protein is better?"
Both whey and plant-based proteins can support muscle health.
Whey protein contains all nine essential amino acids and is naturally rich in leucine, an amino acid that plays a key role in stimulating muscle protein synthesis.
Many studies have shown whey to be highly effective for building and maintaining muscle.
Plant-based proteins can also be excellent choices, especially when they contain a blend of complementary protein sources to provide a complete amino acid profile.
The best choice is the one that fits your health needs, dietary preferences, and lifestyle.
Should You Take Protein Right After Exercise?
You don't have to sprint to the kitchen the moment you finish exercising.
The old idea of a tiny "anabolic window" has largely been replaced by a broader understanding.
Eating protein within a couple of hours after resistance exercise is generally a practical approach and can help support muscle recovery.
The most important factor is meeting your total daily protein needs consistently.
Common Protein Mistakes
Here are several mistakes I see frequently:
Skipping breakfast
Many breakfasts contain very little protein.
Waiting until dinner
Try to spread protein throughout the day.
Not eating enough after strength training
Exercise and protein work together.
Choosing convenience foods instead of protein-rich foods
Planning ahead helps.
Assuming aging means muscle loss is unavoidable
It isn't.
With regular strength training, adequate protein, and consistency, adults in their 60s, 70s, 80s, and beyond can still build strength and improve muscle function.
The Bottom Line
Protein is far more than a nutrient for athletes. After age 50, it becomes one of the building blocks of healthy aging.
Combined with regular strength training, enough protein can help you:
Preserve muscle
Stay stronger
Improve balance
Recover faster
Maintain independence
Continue doing the activities you enjoy
You don't have to count every gram forever.
Start by including a quality protein source at each meal, aim to spread your intake throughout the day, and combine it with regular exercise.
Small changes repeated consistently often produce the biggest results.
Doctor Mike's Take
One of the simplest changes I recommend to adults over 50 is to take a close look at their daily protein intake. Many people are surprised to discover they're eating far less than they need to support healthy aging.
If you have trouble reaching your protein goals with food alone, a high-quality protein powder can be an easy and effective addition to your routine.
That's one reason I've partnered with Momentous. They offer both grass-fed whey and plant-based protein powders that are carefully sourced, independently tested, and formulated with quality in mind. If you're looking for a convenient way to support your strength training and healthy aging goals, I encourage you to check out our sponsor, Momentous, and explore their line of protein products.
Remember, no supplement replaces healthy eating and regular exercise—but the right protein can help you consistently reach your nutrition goals.
⚕️ Quick Health Wins
💪 Your muscles need more protein than they did at 30.
As we age, our muscles don't respond to protein as efficiently, a process known as anabolic resistance. Most adults over 50 benefit from 25–35 grams of high-quality protein per meal, spread throughout the day, rather than eating most of it at dinner.
🏋️ Creatine isn't just for athletes.
Creatine is one of the most thoroughly researched supplements available. Studies suggest it can help support muscle strength, power, recovery, and healthy aging when combined with regular resistance exercise.
🚶 Muscle is your insurance policy for independence.
Maintaining muscle mass isn't just about looking fit—it's about climbing stairs, getting out of a chair, carrying groceries, preventing falls, and staying independent for years to come.
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✅ Try This This Weekend
This weekend, perform a simple Protein Check-Up.
For one day, write down approximately how much protein you eat at breakfast, lunch, and dinner. Don't worry about being exact—just estimate.
Then ask yourself:
✅ Did I get 25–35 grams of protein at each meal?
✅ Did I include a quality protein source such as fish, poultry, eggs, Greek yogurt, cottage cheese, lean meat, beans, tofu, or a protein shake?
✅ If I strength train, did I eat protein within a couple of hours after my workout?
Many people discover they're getting enough protein overall—but almost all of it comes at dinner. Simply spreading your protein more evenly throughout the day can better support muscle maintenance and healthy aging.
Small changes repeated consistently often produce the biggest results. Your future self will thank you. 💙
Tomorrow you will wish you had started today!
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