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Natural Protein™: Whey + Collagen, 1lb

For Muscle Growth
Rated 4.7 out of 5
102 Ratings
Regular price $19.98 List price


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The Highest Quality Protein

Refuel your body with all natural nutrients needed to rebuild muscle and damaged tissue.

Natural Stacks Protein is made with grass fed whey from all natural ingredients with zero sugar or artificial sweeteners.

Mixed with Collagen protein for its pain reducing anti-inflammatory properties. 

Power through workouts and life!

Whey + Collagen gives you the ability to build lean muscle and expedite recovery all in one scoop.

Feel the anti-inflammatory benefits of collagen while building lean muscle.

Mix Natural Protein with water or include it in your favorite smoothie pre or post workout for the best results.

Natural Protein Plus Collagen

Natural Protein™ is a 2 to 1 ratio of whey to collagen protein from grass fed cows. It’s GMO-free, hormone-treatment-free, and antibiotic-free.


  • 18 grams of grass-fed protein per serving!

  • Whey protein to build lean muscle

  • Collagen protein to expedite recovery & repair 

  • Colostrum for extra regenerative growth factors

Available in two all-natural flavors, Madagascar Vanilla Bean and Raw Ecuadorian Cacao, it provides a revitalizing dose of bio-available protein.

Whey + Collagen = The Best of Both Worlds

Natural Protein™ contains a complete protein matrix consisting of the finest whey protein concentrate made from fresh milk (not cheese by-products) and pure hydrolyzed bovine collagen protein. 

The 2 to 1 ratio of whey to collagen protein provides a full spectrum of nutrients essential for fast recovery, a strong immune system, connective tissue strength and durability, and lean muscle growth. 

Natural Protein™ also contains colostrum from grass-fed, pasture-raised cows to increase the amount of regenerative growth factors. It's biologically-active, undenatured protein powder designed for optimal health and performance.

No Sugar, Sweeteners, Artificial Ingredients, Artificial Flavors, Dyes, or Fillers.

Whey Protein

A study examining the effect of protein and resistance training on muscle growth found that “dairy protein, and whey in particular may:

  • Stimulate the greatest rise in muscle protein synthesis
  • Result in greater muscle cross-sectional area when combined with chronic resistance training, and
  • At least in younger individuals, enhance exercise recovery.” [1]

Results from a 2008 study in the Journal of International Society of Sports Nutrition indicated that “subjects that consume a whey protein supplement before and after a resistance training session have a significantly greater improvement in exercise recovery 24- and 48-hours post-exercise than subject ingesting a placebo.” [2]

A double-blinded randomized controlled trial on young men (age 21-23) found that “the ingestion of a modest dose of whey protein, taken immediately after resistance exercise, is able to enhance the earlier activation of translational kinases in young males compared with exercise alone.” [3]

Collagen Protein

In 2008, a 24-week study at Penn State University on 147 student athletes showed significant results for “the use of collagen hydrolysate to support joint health and possibly reduce the risk of joint deterioration” [4]

A recent clinical study confirmed the pain-reducing and anti-inflammatory properties of hydrolyzed collagen. Specifically, it “demonstrated that collagen peptides are potential therapeutic agents as nutritional supplements for the management of osteoarthritis and maintenance of joint health” [5]

Results from a randomized controlled trial on 250 subjects showed that “there was a significant improvement in knee joint comfort” when hydrolyzed collagen was ingested daily. [6]


A 2012 study published in the Journal of Medicine and Sport Science showed that “bovine colostrum is beneficial for certain groups of athletes, such as those involved in strenuous training (e.g. endurance athletes), in terms of immunity and resistance to infection.” [7]

An 8-week study on 51 men examined the effects of bovine colostrum on exercise performance. Researchers concluded that “bovine colostrum supplementation during training significantly increased peak anaerobic power” [8]

When investigating how to optimize the performance of highly trained cyclists, it was found that “low dose bovine colostrum supplementation elicited improvements in 40 km time trial performance during an high intensity training period” [9]



Natural Protein™ features the purest non-denatured, low-temperature processed all-natural whey protein concentrate. It’s derived from pasture raised grass-fed cows and minimally processed to maintain the full range of fragile immune-modulating and regenerative components present in fresh raw milk. In addition to its muscle-building and health-promoting properties, it helps manage hunger and sustain energy levels.


Up to 30% of all protein in the body and 70% of the proteins in connective tissues are composed of collagen. Its essential to the elasticity and regeneration of tendons, cartilage, bones, and skin. Sourced from nature’s healthiest cows, the collagen in Natural Protein™ is enzymatically processed to leave it’s nutrient peptides intact and bio-available. It’s been shown to speed recovery, repair connective tissue, and improve flexibility.


Also known as “first milk”, colostrum is a pre-milk fluid produced by mammals that have recently given birth. The enzymes, antibodies, and growth factors colostrum provides promote growth and fight disease. Natural Protein™ has colostrum that comes from cows that are pastured-raised year round on natural grasslands.


You won't find any artificial flavors or vanilla extracts at Natural Stacks. Our Natural Protein™ is flavored with actual raw ground vanilla bean that we source only from the finest ‘A’ Grade Madagascar vanilla beans for a delicate and aromatic flavor.


Sourced directly from the high-altitude mountains of Ecuador, the raw cacao powder in Natural Protein™ is rich with essential micronutrients (vitamin c, magnesium, zinc, iron) and antioxidants.

Suggested Use

Mix 1 scoop (19g) with 6 oz of cold water or into your favorite smoothie. Scoop included.

U.S.A manufactured in a cGMP facility. Natural Stacks proudly uses only the highest quality ingredients.

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Open Source

Most companies use "proprietary blends" so they don't have to tell you the amount of each ingredient in their formulas. At Natural Stacks we believe it's your right to know exactly what you're putting into your body. We proudly publish our innovative formulas and ingredient suppliers in an open source format.

Learn About Our Commitment To Transparency

100% Happiness Guarantee

If for whatever reason you're unsatisfied with your Natural Stacks supplements, you can keep the full bottle on us and we'll refund your money. Anything after the first bottle, we'll ask that you return for a refund.

User Reviews

average rating 4.7 out of 5
Based on 102 ratings
  • 5 Stars
    83 Reviews
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    11 Reviews
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    4 Reviews
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    2 Reviews
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    2 Reviews
94% of reviewers would recommend this product to a friend
Rated 1 on a scale of minus 2 to 2, where minus 2 is Bad, 0 is Tolerable and 2 is Great
88 Reviews
Rated 5 out of 5
Review posted


I am very picky when it comes to powders. I have tried 8 or 9 in the short time that I’ve been using them and this is only the second one I like. I found it by searching the ingredients because I cannot stand the taste of sweeteners.

I’ve been using vital proteins product, it’s good but very expensive. I actually like this one better and I didn’t think I was going to. It is my go to from now on. I drink two shakes daily, I’m on the Keto diet but really I no longer consider it a diet. I was borderline diabetic so I changed my lifestyle and this is part of that change. I’m not a big breakfast person and I need to have breakfast so this suits me very well. I like to drink one around dinner time as well. I absolutely love this product I bought the vanilla and if I feel like chocolate I just had a little bit of baking cocoa. Love that it does not have the horrible aftertaste others have and that It is open sourced. I love the whole idea of knowing where the ingredients are coming from. It actually tastes very good, I drink line with almond milk or coconut milk.

Rated 2 on a scale of minus 2 to 2, where minus 2 is Bad, 0 is Tolerable and 2 is Great
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Rated 5 out of 5
Review posted

Great Product

Open source is definitely the way to go for anything imo.

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Rated 5 out of 5
Review posted

The best protein powder ever

This is the only protein powder that I have found that is natural. The vanilla is my favorite - and I love the fact that you can see actual vanilla beans in the powder. Ordering more as we speak!

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Rated 5 out of 5
Review posted


So far so good. I was a little worried since most whey doesn’t agree with me but this one is different.

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Rated 5 out of 5
Review posted

2:1 Whey/Collagen Natural Protein

I've been using protein supplements for years but never have I received the phenomenal benefits I'm receiving from 2:1 Whey/Collagen. Increased energy, stamina, focus, memory, clarity & a beautiful complexion!!

And I'm still on my 1st container!

Rated 0 on a scale of minus 2 to 2, where minus 2 is Bad, 0 is Tolerable and 2 is Great
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Citations & References

1. Hulmi, J. J., Lockwood, C. M., & Stout, J. R. (2010). Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein. Nutrition & metabolism, 7(1), 51.

2. BUCKLEY, J., BRINKWORTH, G., & ABBOTT, M. (2003). Effect of bovine colostrum on anaerobic exercise performance and plasma insulin-like growth factor I. Journal of sports sciences, 21(7), 577-588.

3. Farnfield, M. M., Carey, K. A., Gran, P., Trenerry, M. K., & Cameron-Smith, D. (2009). Whey protein ingestion activates mTOR-dependent signalling after resistance exercise in young men: a double-blinded randomized controlled trial. Nutrients, 1(2), 263-275.

4. Clark, K. L., Sebastianelli, W., Flechsenhar, K. R., Aukermann, D. F., Meza, F., Millard, R. L., ... & Albert, A. (2008). 24-Week study on the use of collagen hydrolysate as a dietary supplement in athletes with activity-related joint pain. Current medical research and opinion, 24(5), 1485-1496.

5. Kumar, S., Sugihara, F., Suzuki, K., Inoue, N., & Venkateswarathirukumara, S. (2015). A double‐blind, placebo‐controlled, randomised, clinical study on the effectiveness of collagen peptide on osteoarthritis. Journal of the Science of Food and Agriculture, 95(4), 702-707.

6. Benito-Ruiz, P., Camacho-Zambrano, M. M., Carrillo-Arcentales, J. N., Mestanza-Peralta, M. A., Vallejo-Flores, C. A., Vargas-López, S. V., ... & Zurita-Gavilanes, L. A. (2009). A randomized controlled trial on the efficacy and safety of a food ingredient, collagen hydrolysate, for improving joint comfort. International journal of food sciences and nutrition, 60(sup2), 99-113.

7. Davison, G. (2012). Bovine colostrum and immune function after exercise. In Acute Topics in Sport Nutrition (Vol. 59, pp. 62-69). Karger Publishers.

8. BUCKLEY, J., BRINKWORTH, G., & ABBOTT, M. (2003). Effect of bovine colostrum on anaerobic exercise performance and plasma insulin-like growth factor I. Journal of sports sciences, 21(7), 577-588.

9. Shing, C. M., Jenkins, D. G., Stevenson, L., & Coombes, J. S. (2006). The influence of bovine colostrum supplementation on exercise performance in highly trained cyclists. British journal of sports medicine, 40(9), 797-801.

†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.

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