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Easy to work with and able to ship to my home when their competitors were not.

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Living.Fit is a curated fitness marketplace built for people who want quality, not clutter.

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30 servings per container: $5.00 / serving

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Protein20.0 g per serving

Creatine5.0 g per serving

Servings30 per container

Serving sizeVaries by product

FormPowder

Allergens Milk, Bovine Gelatin

Key actives

Whey Protein
ProHydrolase
Creatine Monohydrate
Psyllium Husk
Rice Bran
Solnul
Vitamin D3

Arnold Schwarzenegger's complete daily routine: Four foundational products for strength, muscle, gut health, and long-term performance -- proven fundamentals, not trends.
Grass-Fed Whey Protein Isolate (20g): Fast-absorbing complete protein with ProHydrolase digestive enzymes; available in Chocolate, Vanilla, Strawberry, and Unflavored.
Signature Spec Creatine (5g): Pharmaceutical-grade creatine monohydrate to fuel ATP for strength, power, and cognitive support.
Fiber+ (6g): A 3-in-1 blend of Psyllium Husk, Rice Bran, and Solnul Resistant Potato Starch for gut regularity, digestion, and prebiotic support of beneficial gut bacteria.
Vitamin D3 2000 IU: With organic extra virgin olive oil for absorption; supports calcium absorption, bone density, muscular function, and immune resilience.
NSF Certified for Sport, no fillers or artificial additives: Every product independently tested; built for consistent daily use.

Description

Arnold's Ultimate Stack is the complete daily foundation Arnold Schwarzenegger relies on for strength, muscle function, gut health, and long-term performance. Four proven products -- Whey Protein Isolate, Signature Spec Creatine, Fiber+, and Vitamin D3 2000 IU -- built on The Arnold Standard and The Momentous Standard.

What's inside:
• Grass-Fed Whey Protein Isolate -- 20g fast-absorbing complete protein per scoop with ProHydrolase digestive enzymes; Chocolate, Vanilla, Strawberry, or Unflavored
• Signature Spec Creatine -- 5g pharmaceutical-grade creatine monohydrate for ATP, strength, and cognitive performance
• Fiber+ -- 6g of a 3-in-1 blend (Psyllium Husk soluble + Rice Bran insoluble + Solnul prebiotic) for complete digestive support
• Vitamin D3 2000 IU -- with organic extra virgin olive oil for absorption; supports bone density, immune function, and muscle

The combined effect: fast-absorbing whey isolate delivers amino acids for muscle repair, creatine drives energy for strength and cognition, Fiber+ rebuilds gut microbiome diversity, and Vitamin D3 supports bone, muscle, and immune resilience.

How to use: take one serving of each product daily. Whey Protein post-workout or as a meal support; Creatine any time; Fiber+ with a meal or shake; Vitamin D3 any time (organic olive oil in the softgel aids absorption without needing food).

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your doctor to see if this product is right for you.

Ingredients

Grass-Fed Whey Protein Isolate 20g, ProHydrolase enzyme blend. Flavor-specific ingredients vary. Contains Milk.

Signature Spec Creatine Monohydrate (5g per scoop). No fillers, sweeteners, or additives.

Fiber+ (6g per serving): Psyllium Husk, Rice Bran, Solnul Resistant Potato Starch.

Vitamin D3 2000 IU softgel: Cholecalciferol, Organic Extra Virgin Olive Oil. Other Ingredients: Bovine Gelatin Capsule, Glycerine, Purified Water.

Frequently Asked Questions

What's the difference between the Essential Stack and the Ultimate Stack?

The Essential Stack is 2 products (Creatine + Fiber+) for the absolute foundational fundamentals. The Ultimate Stack adds Whey Protein Isolate and Vitamin D3 for complete daily coverage -- protein for muscle synthesis and Vitamin D3 for bone, immune, and hormone support.

Which whey protein flavor should I choose?

Whichever you'll take consistently. Chocolate, Vanilla, and Strawberry mix cleanly into water, milk, or smoothies. Unflavored is best if you're adding whey to coffee, oatmeal, or an existing shake without changing the taste.

Does the Vitamin D3 need to be taken with food?

Not strictly -- the softgel includes organic extra virgin olive oil, which provides the fat needed for absorption even if taken without a meal. Taking it with food is fine too.

Are all four products NSF Certified for Sport?

Yes. Every product in the stack is NSF Certified for Sport, independently tested for banned substances, label accuracy, and heavy-metal contaminants. Fiber+ is additionally Vegan, Gluten-Free, and Non-GMO.

Tap a product to see its label

See Creatine

Supplement Facts

What's in Momentous - Arnold's Ultimate Stack

Products in this stack3

Best for

Muscle Growth
Recovery

Key ingredients

Whey Protein
ProHydrolase
Creatine Monohydrate
Psyllium Husk
Rice Bran
Solnul
Vitamin D3

Diet & quality

Gluten-Free
Non-GMO
NSF Certified for Sport

Allergens: Milk, Bovine Gelatin

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Compare

How Momentous - Arnold's Ultimate Stack compares

Product	Protein	Size	Price	Link
Momentous - Arnold's Ultimate Stack You're viewing	20 g	30 servings	$5.00 / serving
Bucked Up - Buck Feed Original Protein	25 g	30 servings	$2.53 / serving	View Bucked Up - Buck Feed Original Protein
Animal 100% Whey Protein	20 g	30 servings	$1.67 / serving	View Animal 100% Whey Protein
Pure Choice Farms - Whey Protein Isolate Unflavored	28 g	28 servings	$3.50 / serving	View Pure Choice Farms - Whey Protein Isolate Unflavored

Price per serving (per pack for products sold in packs), from the lowest current price. Doses from each product's label.

Muscle Growth

Strength

Recovery

Gut Health

NSF for Sport

Non-GMO

Gluten-Free

Guides

Learn before you buy

Third-Party Tested Supplements: What NSF Certified for Sport (and the Other Seals) Actually Mean
A supplement label can fit an impressive number of reassuring phrases into a small space: third-party tested, quality...

Momentous - Arnold's Ultimate Stack