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B Vitamins for Energy: Do They Actually Work?
Do B vitamins actually boost energy? Yes, but only if you're deficient. As of 2025, B vitamins have become one of the most popular supplements for natural energy support, showing up in everything from energy drinks to powdered greens. The reality: B vitamins don't work like caffeine. They support your body's natural energy production at the cellular level, helping convert...
Best Zone 2 Cardio Workouts: 10 Ways to Build Your Aerobic Base
As of 2025, zone 2 cardio has become a hot topic in the fitness and longevity space, for good reason. While HIIT gets attention for fast results, zone 2 cardio is where the real longevity work happens — building mitochondrial efficiency and fat oxidation capacity without the recovery cost or injury risk. Research shows significant benefits to getting a minimum...
Is Lifting Weights Cardio?
When you do a set of heavy squats, or hammer out two sets to failure on the bench, you might find yourself gasping for air. You look down at your smart watch, and see you’re in zone 3 territory. So that naturally begs the question: is lifting weights cardio? Are you getting even more benefits from your strength training than...
The Japanese Walking Method: Fitness Hack or Empty Hype?
If you've seen "Japanese walking method" trending on social media, hands up (mine is up, in case you can’t see). This one has been on TikTok, health blogs, and morning shows. But here's the thing: this isn't a brand-new discovery. No one just stumbled upon a completely new way to walk. As a fitness tool, though, it has legs (all...
Naked Workout Playlist of the Week - 4/5/26
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L-Arginine in Pre-Workout: Benefits, Dosage, Side Effects, and What You Should Know
What Is L-Arginine? Understanding L-Arginine L-arginine is a semi-essential amino acid, meaning the body can produce it, but sometimes not in sufficient amounts. During periods of stress, illness, or intense physical activity, dietary intake of L-arginine becomes more important. Amino acids are the building blocks of protein. L-arginine plays many roles in the body related to circulation, metabolism, and tissue...
Niacin in Pre-Workout: Benefits, Side Effects, Dosage, and Safety Guide
Pre-workout supplements contain many ingredients designed to increase energy, focus, and workout performance. Niacin, known as vitamin B3, is one ingredient that frequently appears on supplement labels. Niacin is known for a side effect known as “niacin flush”, which is a warm, tingling sensation that can happen after taking certain pre-workout formulas. Beyond the flushing sensation, an important question is...
The Pallof Press: How to Do It, Muscles Worked, and Why It Builds Real Core Strength
The core is the most overlooked part of the body. We jump to work out our biceps, chest, back, even push through leg day once a week. But too many people ignore the part of the body that keeps everything else stable and operational. And even for those who do core workouts regularly, the common mistake is to focus only...
Unilateral Exercises: Here’s What You're Missing by Training Both Sides at Once
You can squat 300 pounds and feel good about your leg strength. Then you try a set of Bulgarian split squats with just your bodyweight, and suddenly your legs are shaking, your balance is gone, and you're questioning everything. That gap between your bilateral strength and your single-leg strength is real, and it's more common than you think. A 2023...
How Serving Sizes Skew Headlines: Supplement Brands and Heavy Metals
When Consumer Reports published its October 2025 protein powder investigation, one number dominated the coverage: 7.7 micrograms of lead per serving in Naked Nutrition's Vegan Mass Gainer. That figure, presented as 1,572 percent of Consumer Reports' daily limit for lead, generated a significant alarm. Social media amplified it. Fitness communities debated it. Customers questioned whether they had been unknowingly harming...
Why the Lead in Protein Powder Headlines Might Be Misleading
When Consumer Reports published its October 2025 investigation into heavy metals in protein powders, social media erupted. Panicked posts urged people to throw out their supplements. Fitness communities debated whether plant-based protein was secretly poisoning them. Loyal customers of popular brands wondered whether they had been putting themselves at risk for years. The alarm is understandable. Headlines claiming that two-thirds...
The Best Collagen Peptides Protein Powders of 2026
What Are Collagen Peptides? Collagen is the most abundant structural protein in the human body. It forms the framework for skin, bones, cartilage, tendons, ligaments, and connective tissue throughout the body. As we age, the body's natural collagen production declines, which is why collagen supplementation has attracted growing interest among both wellness consumers and athletes looking to support joint health...
