Grass-Fed Beef Liver (Freeze-Dried, Non-Defatted, Non-GMO, 100% Pasture-Raised, 45-Day Supply)

135 reviews

Nature’s Ultimate Multivitamin

3,000 mg / 45-Day Supply

Regular price
$44.00 USD
Regular price
$48.00 USD
Sale price
$44.00 USD

MK Supplements Grass-Fed Beef Liver - Features

Liver is one of the most nutrient-dense foods on the planet, and something our ancestors and early humans ate regularly for millions of years.

MK Supplements' Grass-Fed Beef Liver is from 100% pasture-raised New Zealand cattle. Unlike other manufacturers, we use a gentle freeze-drying method (instead of heat) to turn fresh liver into a powder before filling it into gelatin capsules.

Additionally, we don't use hexane or other harsh chemicals to defat our organ meats.

Instead, you get what we consider nature's ultimate multivitamin; a high-quality supplement that offers all the benefits of consuming fresh, grass-fed organ meat (without the strong taste).



Liver is packed with bioavailable and highly-absorbable nutrients that many Americans are deficient in, including choline, copper, folic acid, iron, potassium, selenium, preformed Vitamin A, Vitamin D, Vitamin B12 and zinc.

Liver is also one of the few dietary sources of bioavailable Vitamin K2 (not to be confused with K1, the much less bioavailable plant-based version) and hyaluronic acid. Getting sufficient amounts of Vitamin K2 is important for calcium absorption, especially if you take calcium supplements. 

Liver is also a rich source of coenzyme Q10 (CoQ10), an important antioxidant that can help improve mitochondrial function, promote healthy aging and longevity, and improve brain and heart health.

Combined, the nutrients found in liver are crucial for many of the body’s metabolic processes, including brain function, proper digestion and stable energy levels.

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MK Supplements Grass-Fed Beef Liver contains 100% bioavailable micronutrients.

Why Beef Liver

There is overwhelming scientific evidence that Americans get insufficient vitamins and minerals from their diet, due in large part to the fact that our society has replaced nutritious organ meats — something we ate for millions of years — with breakfast cereals, highly-processed junk food and synthetic multivitamins.

But even plants have fewer nutrients than in the past, thanks to deteriorating soil quality, monocrops and the overuse of fertilizers and other chemicals.

Desiccated organ meat supplements are the easiest way to add highly bioavailable micronutrients back into your diet. 

For example, beef liver is jam-packed with valuable micronutrients like preformed Vitamin A, Vitamin B12 and iron (as well as many others). With over 25 nature-identical vitamins, minerals and cofactors, it’s nature’s ultimate multivitamin.

In comparison, synthetic multivitamins offer high amounts of mostly lab-grown nutrients that the body can’t absorb and flushes out via the urine instead.

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  • Instructions

    Take four capsules per day, or up to six capsules per day if you suffer from severe micronutrient deficiencies or have increased nutritional requirements (e.g., due to your active lifestyle). Children can take two capsules per day, depending on their weight. Consistent and long-term use produces the best results. Ask us if you need help determining the right dosage.

  • Benefits

    Our Grass-Fed Beef Liver is a foundational supplement for any diet or health status, helping to fill nutritional gaps and improve energy, mood, exercise performance, libido and more.

  • Dosage Matters!

    Each serving of our Grass-Fed Beef Liver supplement contains 3 grams of freeze-dried liver. That's the equivalent of one ounce of fresh liver.

  • Quality

    All of our supplements are rigorously tested for purity and heavy metals by third-party labs. Here's a copy of the test report of our latest batch. We also test each batch to ensure it's glyphosate free. If you have questions about it, please let us know.

  • Ingredients

    All of our supplements are 100% free of additives, allergens, antibiotics, hormones, GMOs and pesticides. They’re freeze-dried and non-defatted to provide pure nose-to-tail nourishment for you and your family.

  • More Information

    To learn more about our Grass-Fed Beef Liver supplement, visit our help center!

MK Supplements Grass-Fed Beef Liver with fresh raw liver in background

Nutrients in Beef Liver

Jam-packed with valuable micronutrients like preformed Vitamin A, Vitamin B12 and iron (as well as many others), it’s nature’s ultimate multivitamin.

Liver’s diverse micronutrient profile provides the building blocks for a wide range of bodily functions, supporting the metabolism, immune system, skin, eyes, reproductive organs, mental health and more. Plus, its synergistic combination of vitamins and minerals can naturally boost energy levels by supporting mitochondria (the part of every cell responsible for energy production).

  • Vitamins

    Betaine (1.2 mg), Choline (93.3 mg), Vitamin A (4,732 IU), Vitamin B1 (0.1 mg), Vitamin B2 (0.8 mg), Vitamin B3 (3.7 mg), Vitamin B5 (2.0 mg), Vitamin B6 (0.3 mg), Vitamin B9 (81.2 mcg), Vitamin B12 (16.6 mcg), Vitamin C (0.4 mg), Vitamin D (4.5 IU), Vitamin E (0.1 mg), Vitamin K (21 mcg)

  • Minerals

    Calcium (1.4 mg), Copper (2.7 mg), Fluoride (11.1 mcg), Iron (1.4 mg), Magnesium (5.0 mg), Manganese (0.1 mg), Phosphorus (108 mg), Potassium (87.6 mg), Selenium (11.1 mcg), Sodium (19.3 mg), Zinc (1.1 mg)

  • Other

    Coenzyme Q10 (1 mg), Hyaluronic Acid (25 mg)

Michael Kummer eating dinner with beef liver

Meet Michael

MK Supplements was founded by Michael Kummer, a former professional track athlete turned CrossFitter. Michael is a healthy living enthusiast who helps people improve their health and well-being through his widely-read blog and popular YouTube channel. He lives with his wife Kathy and their two children on a small homestead in Georgia, where they maintain a flock of backyard chickens, a pair of beehives and a German shepherd named Rib Eye. To see what the Kummer tribe is currently up to, follow Michael on Instagram.

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Benefits of Daily Use

Continuous use is crucial for obtaining the maximum benefits from this supplement. Sign up for a subscription to ensure you never run out of Grass-Fed Beef Liver!

  • Eye Health

    The Vitamin A (retinol) and B vitamins in liver play a crucial role in vision, helping to maintain a clear cornea (which is the outside covering of your eye).

  • Skin Health

    The hyaluronic acid, copper, zinc and selenium in liver are crucial for maintaining healthy skin and connective tissue.

  • Energy and Mood

    Liver is an excellent source of Vitamin B12, copper, heme-iron, CoQ10 and niacin, all of which are crucial for energy, optimal exercise performance, metabolism and mood.

  • Brain Health and Cognition

    The highly absorbable B vitamins (riboflavin, folate and B12), amino acids (anserine, carnosine, taurine and l-carnitine), choline and zinc in liver are vital for brain health and cognition as well as neurotransmitter formation.

  • Immune System

    Selenium is a cofactor for the body’s antioxidant defense (glutathione peroxidase, thioredoxin reductase) and (together with copper) supports optimal immune function.

  • Teeth and Bones

    The Vitamin K2 in liver is crucial for bone and tooth health because it supports remineralization and absorption of calcium.

International Shipping

We offer international shipping from our fulfillment centers in the United States and Europe to most countries in the world, including Australia and New Zealand.

We ship orders to customers located within the European Union (EU) from our Austrian fulfillment center. As a result, our EU customers don't have to pay import duties or taxes.

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Find Us On Amazon

You can also find MK Supplements on Amazon. If you decide to purchase our supplements on Amazon, please make sure to leave us a review there as well.

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Customer Reviews
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Filter Reviews:
David M.
United States United States
I recommend this product

No more multivitamins for me!

I wanted to wait several months before posting my review. I wanted to give this product a fair amount of time to see if it has really benefited me. I'm a very busy 50 year old who works about 60 hours a week, married with young kids, commutes about 20 hours a week, and trains about 5 - 6 days a week. I eat pretty clean, meal prep, and try hard to get around 7-8 hours of sleep. Up to until recently, I was taking a host of multivitamins and supplements. My wife one day asked how much I was spending a month on "these pills" and quickly did some math. I was spending WAY more than I really thought. I heard about the many benefits of beef liver supplements and saw Michael on youtube talking about this product. I did further research and read and listened to many more people that talked about the benefits of beef liver - something I stopped eating many, many years ago. I purchased this product, and after several months of usage, I can honestly say I feel a positive difference in my body. More energy, and better sleep seem to be the most noticeable traits. I also did some comparisons on my Whoop strap from a year ago and also noticed some tangible results. My HRV, and recovery numbers are consistently higher than they were prior to taking this product. I am very happy to have discovered this product and the company that stands behind it. I stopped purchasing all my other supplements except fish/krill oil. Many thanks!


MK Supplements

Thanks so much for the in-depth testimonial, David! I'm thrilled you're noticing the positive impact a nutrient-dense food like grass-fed liver can have and that you could replace several other vitamin supplements. All the best, Michael & the rest of the MKS tribe

amy p.
United States United States
I recommend this product

grass fed beef liver

This supplement is awesome. I feel better and have been able to get rid of some other supplements because of all the benefits that come from this one.


MK Supplements

Hey Amy, Happy to hear that you feel better and that you chose us! Thanks so much for your support and feedback. Michael & the entire MKS tribe

United States United States
I recommend this product

Great Product

These beef liver pills are great. No nasty taste and I definitely have more energy when I take them.


MK Supplements

Hey Peter, Happy to hear that you have more energy when consuming our beef liver supplements. We appreciate your feedback and support. Michael & the entire MKS tribe

United States United States
I recommend this product

Quality Supplement!

I held off on my review until the end of my 90 day supply, now I can confidently recommend these! My energy is much more stable with these. Clean and quality supplement.


MK Supplements

Hey Elizabeth, It's great to hear that you have stable energy with our supplements! Thanks for your support and feedback. Michael and the entire MKS tribe

Crystal L.
United States United States
I recommend this product

Awesome liver pills!

Had a great experience with shipping and love these liver pills. Easy to swallow and I know I'm getting the best.


MK Supplements

Hey Crystal, Thanks so much for your feedback and support. We're happy to be supporting you on your wellness journey. Michael & the entire MKS tribe