The protein that built
the golden era
Milk & Egg Protein — the high-biological-value blend Vince ran at Vince's Gym. Whey, casein and egg albumin in one staged-release formula. Zero added sugar, no fillers, every dose printed on the label.
original formulas
no proprietary blends, ever
every single batch
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The Gironda Protocol
Three jobs. Three formulas. One system — the way Vince actually ran it at Vince's Gym.
The base. Staged-release protein at meals and before bed — whey, casein and egg in one formula.
Start with the base →Between meals. The golden-era staple Vince gave every student to hold nitrogen balance around the clock.
Add the staple →Around training. Fast casein hydrolysate keeps muscle fed while you work and while you cut.
Protect the work →Why lifters switch to NSP
Built on the man who built champions
“Bodybuilding is 85% nutrition.”
Vince Gironda trained the first Mr. Olympia, Larry Scott, and shaped the physiques of Frank Zane and the stars of Hollywood from his gym in Studio City. In 1972 he founded NSP — Nature-Sourced Products — to give his students the exact formulas he ran on the gym floor.
Fifty years later, we still make them his way: whole-food ingredients, full doses, nothing hidden. We're not reviving a legacy. We never stopped.
Train from the source
The manuals the golden era actually trained by — Vince's own courses and bulletins, $18.99 each. The knowledge behind every formula we make.
Every formula we sell was written in these pages first. Read the method behind the supplements →
Word from the gym floor
4,200+ verified store reviews on Judge.me from lifters running Vince's formulas today.
"This protein powder is the same recipe that was around when the company started! So good!"
"NSP's Milk & Egg has always been the top product in its category since it first hit the market. The ever popular Cherry Almond flavor is back…"
"I have been using this fantastic product for years. I have tried other protein products and nothing compares to NSP Milk and Egg protein… it tastes delicious. This is truly a gem."
"I'm enjoying NSP Liver capsules. The energy, stamina and overall well being they offer, along with hard work, is fantastic. So glad I found NSP… Thanks!"
"I can definitely feel the difference on days when I take them compared to when I don't. Totally satisfied so far. Will order again."
"Increased my workout capacity and intensity, highly recommend for athletes."
What you see is what you get
The best ingredients we can source. Flavors you'll actually look forward to. Formulas we refuse to cheapen — because Vince wouldn't have.
Grass-fed, whole-food sources wherever they exist. No maltodextrin, no artificial sweeteners, no filler.
A supplement only works if you take it every day. Ours taste good enough that you will.
Every batch made in the USA and lab tested for purity and potency. Every dose printed where you can read it.
Common questions
What makes NSP different from every other supplement brand?+
Three things. We print the full dose of every ingredient on the label — no proprietary blends, ever. Our formulas are the originals from the golden era of bodybuilding, built on Vince Gironda's methods, not invented by a marketing team. And everything is made in the USA with every batch lab tested.
Is Milk & Egg Protein really better than whey?+
Different job. Whey alone hits fast and is gone in about an hour. Milk & Egg combines whey, casein and egg albumin, so aminos keep arriving for hours — which is why Vince called for it at meals and before bed. If you only own one protein, this is the one the golden-era physiques were actually built on.
Why does everyone here talk about beef liver?+
Because it was Vince's universal staple — the one supplement he gave every student regardless of goal. Desiccated liver from grass-fed cattle, taken between meals, keeps your body fed with iron-rich, whole-food nutrition around the clock. It's the most old-school thing we make, and our regulars run it year-round.
Do you offer subscriptions?+
Yes — Subscribe & Save takes 15% off every order, delivered on your schedule. Skip a delivery, change flavor or cancel anytime from your account. For something you take daily, it's the cheapest way to never run out.
Where do orders ship from?+
Everything ships from our US warehouse. US shipping is free on orders over $100 — and bundles clear that line on their own.
†These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.