If you've been digging into supplements lately, there's a good chance you've come across NAC — short for N-Acetyl Cysteine. Maybe you’ve even seen something called a NAC Plus supplement and wondered, “what’s the plus?”
Today I want to break it down. What’s actually in a NAC Plus supplement, why it’s different from plain NAC, and most importantly — who it’s really for.
Let’s get into it.
First, What Is NAC?
NAC (N-Acetyl Cysteine) is a stable form of the amino acid cysteine. What makes it interesting is that it acts as a precursor to glutathione, your body’s most important antioxidant.
Your liver, lungs, and immune system rely on glutathione to handle oxidative stress. But glutathione can’t just be taken directly in meaningful amounts — it has to be built internally, and that’s where NAC comes in.
So What Makes NAC Plus...“Plus”?
When I created what became NAC Plus by K3 Nutriments, I didn’t just want to offer a standalone NAC capsule. I wanted to build a smarter stack — one that actually supports the full detox and immune pathways NAC is part of.
That’s why we combined NAC with:
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Glycine — Another key building block for glutathione
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Selenium — A trace mineral that activates glutathione peroxidase
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Molybdenum — Supports sulfur-based detoxification
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Alpha Lipoic Acid (ALA) — Regenerates spent glutathione and crosses cellular membranes
This kind of formula doesn’t just check boxes — it ensures your body has everything it needs to make and use glutathione efficiently.
What Is NAC Plus Supplement Used For?
You’ll see a lot of different use cases, but here’s where it shines:
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Liver Support: Helps maintain healthy liver enzyme levels and supports detox
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Respiratory Support: NAC acts as a mucolytic, helping thin mucus and support lung function
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Immune Health: Supports the body’s master antioxidant defense system
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Cellular Protection: Protects against oxidative stress and free radicals
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Cognitive Support: Research suggests NAC may help support mental clarity and neurotransmitter health
What makes NAC Plus unique is that it amplifies these pathways, not just through NAC, but with supportive cofactors your body actually needs.
Who Should Take NAC Plus?
I formulated this for people who want to support detox and immunity the right way — without gimmicks.
That includes:
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People under daily stress or toxic exposure (pollution, alcohol, meds)
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Athletes or high-performers experiencing oxidative load
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Adults focused on long-term wellness and liver protection
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Anyone already taking NAC and not noticing a real difference
You don’t have to be “detoxing” to benefit from a smarter antioxidant strategy. If you’re aging, training, or living a modern lifestyle — it applies to you.
How to Take NAC Plus
Each capsule of K3 NAC Plus includes:
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NAC — 600 mg
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Glycine — 500 mg
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ALA — 150 mg
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Selenium — 200 mcg
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Molybdenum — 75 mcg
Personally, I take one capsule with lunch and one with dinner. During times of stress or when I’m traveling, I may bump it to three per day. It’s clean, mild, and well-tolerated even on an empty stomach.
Why We Built It This Way
Not every product needs to be flashy. This is a foundational formula, built on precision and function. That means:
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No hidden blends or fillers
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Effective doses based on real clinical data
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Ingredients that work together, not just share a capsule
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Transparent sourcing and third-party tested for purity
You’d be surprised how many NAC formulas cut corners on the supporting ingredients. That’s not how we do it here.
Why NAC Has Been in the News
You may have heard about NAC being flagged by the FDA in recent years. The truth is, NAC has been used in both clinical and nutritional settings for decades. After some regulatory back and forth, NAC is now fully recognized again as a dietary supplement — and demand has only grown.
People are learning just how vital glutathione is for daily resilience — and how NAC, paired with the right cofactors, is one of the smartest ways to support it.
Final Takeaway
You can take plain NAC and hope for the best — or you can use a formula that actually supports the entire glutathione pathway.
NAC Plus gives you the tools your body needs to build and use its own antioxidant defenses — nothing more, nothing less.
If that sounds like something you’re missing, give it a shot. This is the formula I take myself, and it’s one of the most foundational supplements I use all year long.
Talk soon,
Doug Krussel
Founder, K3 Nutriments