TMG: Your Secret Fit Weapon

When it comes to supplements, it’s easy to feel like you’re drowning in alphabet soup—BCAAs, CLA, EPA, DHA, and the list goes on. But there’s one under-the-radar powerhouse that more people should be talking about, especially if you’re a man or woman over 40 trying to turn back the clock on your health and performance.

Enter: TMG—short for Trimethylglycine, aka Betaine, and yes, it might just be your secret fit weapon.

Let’s break it down—what it is, what it does, and why it could be the missing link in your fitness, energy, and longevity stack.

What Is TMG?

TMG (Trimethylglycine), also known as Betaine, is a naturally occurring compound found in foods like beets, spinach, and whole grains. It plays a critical role in methylation, a process in your body that’s kind of like updating your software—it keeps everything running smoother, faster, and more efficiently.

Methylation helps regulate your hormones, detox pathways, neurotransmitters (hello, better mood and focus), and even gene expression. It’s basically how your body turns raw materials into usable power.

But here’s where it gets juicy…

Why TMG and Your Fitness

1. Boosts Strength and Power

If you lift weights, play sports, or just want to perform better in the gym—or the bedroom—TMG has got your back.

Several studies show that TMG can increase muscle power output and overall strength, especially during resistance training. Think more reps, more weight, more gains. That’s partly because TMG helps your muscles stay hydrated, similar to how creatine works, giving them that fuller, more powerful look and feel.

And if you're over 40? This becomes even more critical. You’re fighting a natural decline in muscle mass (sarcopenia), and TMG can help slow the slide and keep you feeling strong.

Pro tip: Combine TMG with creatine and beetroot powder for a nitric oxide, muscle-building, blood-pumping trifecta.

2. Supports Fat Loss & Metabolic Health

TMG doesn’t burn fat directly like caffeine or yohimbine might, but it optimizes how your body uses energy.

It supports liver function and helps regulate homocysteine levels, a compound that—if elevated—can increase inflammation and mess with your metabolic health. Keeping that in check means your liver works better, your hormones balance out, and your fat-burning engine stays fired up.

Translation: Less fat storage. More energy. Better metabolism.

3. Improves Heart and Brain Health

TMG is a methyl donor, which is science-speak for “it helps your body clean up the mess.” Specifically, it reduces excess homocysteine, which when elevated, increases your risk for heart disease, strokes, and cognitive decline.

As we age, especially past 40, our methylation naturally slows down—meaning more wear and tear, slower recovery, and increased risk of degenerative diseases.

By supporting methylation, TMG helps protect your brain and heart, boost mental clarity, and promote better blood flow.

Side benefit: Better blood flow = improved performance in all areas, if you catch my drift.

4. Supports Mood, Focus, and Energy

Ever feel mentally foggy even after 8 hours of sleep? Or hit a wall halfway through your workout or workday?

TMG helps regulate neurotransmitters like dopamine and serotonin, which are key for motivation, mood, and focus. When your methylation is firing, you feel sharper, more alert, and more you.

If you’ve been feeling off—even if your bloodwork says you’re fine—TMG might just give your brain the spark it needs.

TMG vs. Creatine – What’s the Difference?

Good question, because they’re often paired together—and for good reason.

Creatine supports energy production by helping recycle ATP (your cellular energy).
TMG helps reduce the buildup of homocysteine, which is a byproduct of creatine metabolism.

That means taking both together not only enhances muscle performance, but also protects your health on the backend. It's like driving a sports car and getting the oil change every 5,000 miles. Performance + maintenance.

How to Use TMG

Dose: 500 mg to 2,000 mg daily is standard, depending on your needs and goals. Most people do well starting at 1,000 mg/day.
Timing: Take it 30–60 minutes before training or with your first meal for general wellness.
Stacking: Pairs well with creatine, beetroot, citrulline, and B-complex vitamins (especially B6, B12, and folate).

Some pre-workouts include TMG already, but standalone powders or capsules give you more control and allow for daily use beyond just workouts.

Who Should Consider TMG?

TMG is especially powerful for:

Men and women over 40 who want to maintain muscle, mental sharpness, and energy
Anyone lifting weights or doing resistance training
People with MTHFR gene variations (which impair methylation)
Those dealing with chronic fatigue, brain fog, or stubborn fat

Even if you’re just starting your health journey and want to give your body an edge—TMG is a low-risk, high-reward addition.

Side Effects?

TMG is generally well-tolerated. In higher doses (3g+), some people may notice a mild body odor (from the increased methylation activity), but this is rare and typically fixed by staying hydrated and getting enough zinc or choline.

If you’re taking medications or have a pre-existing condition, it’s smart to check with your healthcare provider first.

Wrap Up

TMG might not be the flashiest supplement on the shelf—but it’s a silent killer of fatigue, brain fog, weak workouts, and slow recovery.

If you’re looking for that next-level upgrade to your fitness, energy, and health—especially as you hit your 40s and beyond—TMG deserves a permanent spot in your supplement stack.

Short Story - It’s cheap. It’s safe. It works!

And that’s why it’s your secret fit weapon.