Casein+ | Casein Protein Powder


Our "No Return Necessary"
Money-Back Guarantee

If you don’t like something of ours, guess what happens next?

No, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon. Nor do we ask you to fill a cursed inkwell with orc’s blood and demon saliva and then use it to complete reams of return forms written in ancient Cyrillic script.

We just . . . wait for it . . . give you your money back. Holy moo cows. And that means you can say "yes" now and decide later.

Is Casein+ an advanced “anabolic feast” for maximizing your performance, recovery, and gains? No.

Will it supercharge your metabolism and burn fat while you sleep? Absolutely not.

But will Casein+ help you eat enough high-quality protein rich in all 9 essential amino acids to keep gaining muscle and strength? And without bloating, gassiness, or stomach aches? Yes. Or your money back.

  • Made with pure Truly Grass Fed milk from hormone- and antibiotic-free cows that live the way nature intended—outside, roaming and grazing on grass[9] Studies show that the more grass cows eat (instead of other types of feed such as grains or soybeans), the more nutritious their milk and beef is.
  • Total formulation transparency (no proprietary blends)[10] This means you know exactly what’s in every serving of Casein+—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation.
  • Made in the USA with globally sourced ingredients in NSF-certified and FDA-inspected and cGMP-compliant facilities

So order now, try Casein+ risk free, and see for yourself why we believe it’s the perfect Truly Grass Fed casein protein powder (that has sold over 100,000 bottles and counting!).

Is Casein+ an advanced “anabolic feast” for maximizing your performance, recovery, and gains? No.

Will it supercharge your metabolism and burn fat while you sleep? Absolutely not.

But is Casein+ the only[1] Some popular casein protein powders are all-natural. Some contain 100% micellar casein. Some are made with Truly Grass Fed™ milk. But only Casein+ checks each of these boxes. 100% natural[2] Casein+ doesn’t just “contain natural ingredients''—every ingredient is naturally sourced from plants and animals. Casein+ contains no artificial or synthetic substances of any kind. micellar casein powder[3] Micellar casein is the highest quality form of casein protein you can buy because it has been produced in a way that maximally preserves its slow-digesting properties. made with Truly Grass Fed milk[4] Truly Grass Fed™ milk comes from hormone- and antibiotic-free cows that live how nature intended—outside, roaming and grazing on grass. from small dairy farms in Ireland renowned for their healthy and sustainable farming practices?[5] Ireland produces some of the healthiest, cleanest milk in the world, and Casein+ comes from farms certified by Ireland’s Sustainable Dairy Assurance Scheme, which ensures the farmers adhere to best practices in animal welfare, sustainability, product quality, traceability, and soil and grass management.

And will it help you eat enough high-quality protein rich in all 9 essential amino acids to keep gaining muscle and strength? And without bloating, gassiness, or stomach aches?

Yes. Or your money back.

  • 15 peer-reviewed scientific studies support Casein+’s ingredients[6] That’s 187 pages of scientific research that shows Casein+ works exactly like we say it does.
  • Contains no artificial sweeteners, flavors, food dyes, or other chemical junk[7] While these types of chemicals may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. And that’s why you won’t find them in Casein+.
  • Analyzed for purity and potency in a state-of-the-art ISO 17025 accredited lab[8] Every bottle of Casein+ is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants.
  • Made with pure Truly Grass Fed milk from hormone- and antibiotic-free cows that live the way nature intended—outside, roaming and grazing on grass[9] Studies show that the more grass cows eat (instead of other types of feed such as grains or soybeans), the more nutritious their milk and beef is.
  • Total formulation transparency (no proprietary blends)[10] This means you know exactly what’s in every serving of Casein+—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation.
  • Made in the USA with globally sourced ingredients in NSF-certified and FDA-inspected and cGMP-compliant facilities

Casein+ is also backed by our “No Return Necessary” money-back guarantee that works like this:

If you don’t absolutely love Casein+, just let us know, and we’ll give you a full refund on the spot. No forms or returns necessary.

So order now, try Casein+ risk free, and see for yourself why we believe it’s the perfect Truly Grass Fed casein protein powder (that has sold over 100,000 bottles and counting!).

Notice to California Consumers

WARNING: Consuming this product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

Ingredients (30 grams per serving)

Truly Grass Fed Micellar Casein Protein Powder (26 grams per serving)

Micellar casein is a form of casein protein that has been produced in a way that maximally preserves its slow-digesting properties.

It’s the highest quality casein protein powder you can buy and has a stellar amino acid profile, providing you with 11.4 grams of essential amino acids per serving.

Casein+ is also made with pure Truly Grass Fed casein protein, which is made with milk from hormone- and antibiotic-free cows that live the way nature intended—outside, roaming and grazing on grass.

Grass-Fed Micellar Casein Protein (26 grams per serving)

100% Naturally Sweetened & Flavored

While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of these chemicals may indeed be harmful to our health.[11][12][13][14][15][16]

That’s why we use the natural sweeteners stevia and erythritol instead. Studies show that these ingredients are not only safe but can also confer several health benefits, including better insulin sensitivity, enhanced cholesterol profile, lower inflammation levels, and more.[17][18][19][20]

No Artificial Food Dyes or Other Chemical Junk

No Artificial Food Dyes or Other Chemical Junk

As with artificial sweeteners, studies show that artificial food dyes may cause negative effects in some people, including gastrointestinal toxicity and behavioral disorders.[21][22][23][24][25]

That’s why we use natural coloring derived from fruits and other foods, as well as natural flavoring.

No Artificial Food Dyes or Other Chemical Junk

Lab Tested for Potency & Purity

Every bottle of Casein+ is analyzed in a state-of-the-art ISO 17025 accredited lab to verify what is and isn’t in it. That way, you know exactly what you’re getting and putting into your body.

Lab Tested for Potency & Purity
Casein Lab Test Certificate

See how Legion compares to the rest.

  • Protein Per Serving
  • Calories Per Serving
  • 100% Micellar Casein Protein
  • Certified Truly
    Grass-Fed™
  • No Added Sugars
  • Natural Ingredients
  • Naturally Sweetened
    & Flavored
  • Lab Tested
  • Labdoor
    Certified Brand
  • Price Per Serving
  • Legion Casein+
    Protein Powder

    Casein+ Protein Powder
  • 25–26 g
  • 110–140
  • true
  • true
  • true
  • true
  • true
  • true
  • true
  • $
  • Gold Standard
    100% Casein

    Gold Standard 100% Casein
  • 24 g
  • 120
  • true
  • close
  • true
  • close
  • close
  • close
  • close
  • $1.44
  • Pro JYM
    Protein Blend

    Pro JYM Protein Powder
  • 24 g
  • 140–170
  • close
  • close
  • true
  • close
  • close
  • close
  • close
  • $1.40
  • PEScience
    Select Protein

    PEScience Select
  • 23–24 g
  • 120
  • close
  • close
  • true
  • close
  • close
  • close
  • close
  • $1.30

The #1 brand of all-natural sports supplements.

Over 4,000,000 bottles sold to over 800,000 customers who have left us over 45,000 5-star reviews

Natural Ingredients
No Chemical Junk

Casein+ doesn’t just “contain natural ingredients”—every ingredient is naturally sourced. We don’t use artificial or synthetic substances of any kind.

Clinically Effective Doses
Clinically Effective Ingredients & Doses

Every ingredient and dose (important!) in our supplements is backed by peer-reviewed scientific research demonstrating clear benefits.

Naturally Sweetened & Flavored
Naturally Sweetened & Flavored

Casein+ is naturally sweetened and flavored with healthy, plant-based sweeteners and flavors.

Lab Tested
Lab Tested

Casein+ is tested by third-party labs for heavy metals, microbes, allergens, and other contaminants to ensure it meets FDA purity standards.

Made in USA
Made in USA with Globally Sourced Ingredients

Casein+ is proudly made in America in NSF-certified and FDA-inspected facilities in accordance with the Current Good Manufacturing Practice (cGMP) regulations.

100% Money-Back-Guarantee
"No Return Necessary"
Money-Back Guarantee

If you don't absolutely love Casein+, just let us know, and you’ll get a prompt and courteous refund. No forms or returns necessary.

Trusted by scientists, doctors, and everyday fitness folk alike.

Previous
  • Dr. Spencer Nadolsky, MD

    Board-Certified Family Medicine Physician, a Diplomate of the American Board of Obesity Medicine, and Legion Advisory Board Member

    "There are a lot of sleazy supplement companies out there, but Legion is not one of them. Their products are free of fillers and inactive ingredients and they take the time (and money) to test them with independent labs to ensure you're getting what you pay for."

  • Menno Henselmans, MS

    Founder of Bayesian Bodybuilding, Published Scientist, Physique Coach, and Legion Advisory Board Member

    "Legion consults with nutrition experts to make honest, science-based products and then proves they're genuine with independent lab work. That's how all supplement companies should operate."

  • Dr. Bill Campbell, PhD

    Professor of Exercise Science at University of South Florida and Legion Advisory Board Member

    "Legion is science-based at its core. All of their products contain doses proven to be effective by scientific studies, and they fund new research. They don't just want to sell you supplements—they want to change the supplement industry for the better."

  • James Krieger, MS

    Published Scientist, Author, and Speaker

    "There are three reasons I like Legion. First, they use ingredients backed by independent, peer-reviewed scientific studies. Second, the quality of their supplements exceeds many in the industry and you know you’re getting what’s on the label. Third, Mike Matthews is a solid evidence-based guy who doesn’t over-hype."

  • Chris Barakat, MS

    Published Scientist and Physique Coach

    "I've been involved in the supplement industry for over a decade now, and I can tell you that Legion is the ONLY company doing EVERYTHING right! They make effective products that are backed by scientific evidence, properly dose all of their ingredients, source every ingredient from the highest-quality sources, and are transparent about exactly what goes in each and every product."

  • Kurtis Frank

    Co-Founder and Former Lead Researcher & Writer of Examine.com

    "With Legion, you really do get what you pay for. Each and every product is packed with effective doses of effective ingredients, and what’s on the label is what's actually in the bottle."

  • Jordan Syatt

    Strength and Nutrition Coach

    "Legion is a tremendous company run by people I trust and respect. The quality of their supplements is second to no one. And while I don’t use many supplements, the only ones I do come from Legion."

  • Sal Di Stefano, Justin Andrews, and Adam Schafer

    Hosts of The Mind Pump Podcast

    "When it comes to quality and integrity, Legion is among the best. Their products only include ingredients that are backed by research and in doses that are proven to be effective in scientific studies."

Next

Ingredients & Nutrition

  • Milk Chocolate
  • Casein+ Milk Chocolate Supplement Facts
  • Vanilla
  • Strawberry
  • Banana Cream Pie
Casein+ Milk Chocolate Supplement Facts Casein+ Vanilla Supplement Facts Casein+ Strawberry Supplement Facts Casein+ Banana Cream Pie Supplement Facts

Directions

As a dietary supplement, mix 1 serving with 8-10 oz of water, milk, or your favorite beverage.

Warning

Not intended for persons under the age of 18. Do not use if pregnant or nursing. Consult a health care professional prior to consumption if you have any pre-existing medical conditions or are taking any prescription medication. Improper use of this product will not improve results and is potentially hazardous to a person’s health. Use only as directed.

KEEP OUT OF REACH OF CHILDREN. STORE IN A COOL, DRY PLACE. DO NOT USE IF SAFETY SEAL IS BROKEN OR MISSING.

Frequently Asked Questions

How do I use Casein+?
Why is Casein+ more expensive than other casein protein supplements?
How much casein protein can I eat per day?
I’ve heard that eating casein protein after a workout can help me build muscle faster. Is that true?
If Casein+ is too sweet/strong or isn't sweet enough for me, what should I do?
Is Casein+ gluten-free or vegetarian?

+References

11. Artificial Sweeteners: History and New Concepts on Inflammation.

Basson AR, Rodriguez-Palacios A, Cominelli F. Front Nutr. 2021;8:746247. Published 2021 Sep 24. doi:10.3389/fnut.2021.746247.

12. Non-caloric artificial sweeteners and the microbiome: findings and challenges.

Suez J, Korem T, Zilberman-Schapira G, Segal E, Elinav E. Gut Microbes. 2015;6(2):149-155. doi:10.1080/19490976.2015.1017700.

13. What made Canada become a country with the highest incidence of inflammatory bowel disease: could sucralose be the culprit?

Qin X. Department of Surgery, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey, USA. Can J Gastroenterol. 2011 Sep;25(9):511.

14. Artificial Sweeteners Negatively Regulate Pathogenic Characteristics of Two Model Gut Bacteria, E. coli and E. faecalis.

Shil A, Chichger H. Int J Mol Sci. 2021;22(10):5228. Published 2021 May 15. doi:10.3390/ijms22105228.

15. Artificial sweeteners induce glucose intolerance by altering the gut microbiota.

Suez J, Korem T, Zeevi D, et al. Nature. 2014;514(7521):181-186. doi:10.1038/nature13793.

16. High-intensity sweetener consumption and gut microbiome content and predicted gene function in a cross-sectional study of adults in the United States.

Frankenfeld CL, Sikaroodi M, Lamb E, Shoemaker S, Gillevet PM. Ann Epidemiol. 2015;25(10):736-42.e4. doi:10.1016/j.annepidem.2015.06.083.

17. Steviol glycosides from Stevia: biosynthesis pathway review and their application in foods and medicine.

Yadav SK, Guleria P. CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. Crit Rev Food Sci Nutr. 2012;52(11):988-98.

18. Antioxidant, anti-diabetic and renal protective properties of Stevia rebaudiana.

Shivanna N, Naika M, Khanum F, Kaul VK. Department of Applied Nutrition, Defence Food Research Laboratory, Mysore, India. J Diabetes Complications. 2013 Mar-Apr;27(2):103-13.

19. Safety evaluation of certain food additives.

World Health Organization. WHO Press; 2006. Available at: http://whqlibdoc.who.int/publications/2006/9241660546_eng.pdf. Accessed January 24, 2019.

20. Effects of Stevia rebaudiana (Bertoni) extract and N-nitro-L-arginine on renal function and ultrastructure of kidney cells in experimental type 2 Diabetes.

Ozbayer C, Kurt H, Kalender S, Ozden H, Gunes HV, Basaran A, Cakmak EA, Civi K, Kalender Y, Degirmenci I. Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey. J Med Food. 2011 Oct;14(10):1215-22.

21. Toxicological significance of azo dye metabolism by human intestinal microbiota.

Feng J, Cerniglia CE, Chen H. Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, AR , USA. Front Biosci (Elite Ed). 2012 Jan 1;4:568-86.

22. Artificial food dyes and attention deficit hyperactivity disorder.

Kanarek RB. Department of Psychology, Tufts University, Medford, Massachusetts, USA. Nutr Rev. 2011 Jul;69(7):385-91.

23. Meta-analysis of attention-deficit/hyperactivity disorder or attention-deficit/hyperactivity disorder symptoms, restriction diet, and synthetic food color additives.

Nigg JT, Lewis K, Edinger T, Falk M. Oregon Health and Science University, Portland, OR, USA. J Am Acad Child Adolesc Psychiatry. 2012 Jan;51(1):86-97.e8.

24. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial.

McCann D, Barrett A, Cooper A, Crumpler D, Dalen L, Grimshaw K, Kitchin E, Lok K, Porteous L, Prince E, Sonuga-Barke E, Warner JO, Stevenson J. School of Psychology, Department of Child Health, University of Southampton, Southampton, UK. Lancet. 2007 Nov 3;370(9598):1560-7.

25. Effect of food azo dye tartrazine on learning and memory functions in mice and rats, and the possible mechanisms involved.

Gao Y, Li C, Shen J, Yin H, An X, Jin H. Scientific and Technological College of Chemistry and Biology, Yantai Univ., Yantai, PR China. J Food Sci. 2011 Aug;76(6):T125-9.