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15,000+ Happy Customers

Supercharge Your Nutrient Intake With Bio-Avail Organ

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See What Others Are Saying About Bio-Avail Organ

  • “I’ve been taking the Bio-Avail Organ for a little over a month now and it’s terrific. I’m feeling more energetic and also at ease that I’m getting more essential micronutrients than I was before.”

    —Kelly W.
  • “The BioAvail Organ supplement is excellent. I have always been hesitant to take an organ complex because I was concerned about the amount to take in comparison to the proper amount of organ meat to eat in a week. I know that the amount I am taking in this supplement is the correct amount for optimal health because it contains the same amount of organ meat Chris Kresser recommends a person eat in a week. Thank you for creating this product.”

    —Jenny D.
  • “I've been taking the Bio-Avail Multi, Organ and Myco blends for 60 days now and feel healthy, strong, and like any vitamin/nutrient gaps in my diet are greatly reduced. Glad to have a product from a source I trust! Thanks much.”

    —Kelly K.

The Easiest Way To Tap Into an Energy Powerhouse!

Organ meats are among the most nutrient-dense foods we can eat. 

single serving of liver meets the RDA for vitamin B12 for an entire week and far exceeds the daily RDA for vitamins A and B2 (riboflavin) and copper!

Bio-Avail Organ contains a blend of five freeze-dried bovine organs—liver, heart, kidney, pancreas, and spleen—sourced from 100% grass-fed, grass-finished, free-range cattle. 

With Bio-Avail Organ, you get the incredible health benefits of organ meats without having to prepare and eat them!

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What makes Bio-Avail Organ stand out?

  • 5-Organ Blend

    Many organ supplements only contain liver and one or two other organs. Bio-Avail Organ features a blend of five organs so you get a full spectrum of essential vitamins and minerals.

  • Clean & Pure

    Bio-Avail Organ is sourced from 100% grass-fed, grass-finished cattle that are never given antibiotics or hormones.

  • Nutrient-Dense

    Taking Bio-Avail Organ daily is equivalent to eating 1–2 servings of organ meat a week, which is what most experts recommend for optimal nutrient intake.

Unlock all-day energy, superhuman performance, and vibrant health!

A recent study found that organ meats comprised four of the top seven most nutrient-dense foods we can eat.

Liver was 25x more nutrient-dense than beef and 35x more nutrient-dense than most vegetables!

This explains why traditional cultures around the world have prized organ meats for their ability to boost energy, improve libido and fertility, and slow the aging process.

Add back in what the modern world has squeezed out.

Organ meats were a staple of most traditional diets—and are still regularly consumed in many parts of the world today.

Sadly, they’ve fallen out of favor in our modern diets, and most of us find the taste and texture of organ meats off-putting. 

Bio-Avail Organ allows you to get the incredible health benefits of organ meats without having to prepare and consume them yourself.

Get the full spectrum of nutrients available from organ meats.

Most organ meat supplements on the market only contain liver and one or two other organs. 

But studies have shown that heart, kidney, spleen, and pancreas have distinct nutrient profiles that complement liver.

Bio-Avail Organ contains a blend of all five of these nutrient-dense organs, so you can enjoy the full benefits of these remarkable nutrient powerhouses!

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Adapt Naturals Bio-Avail Organ

Bio-Avail Organ delivers the incredible nutritional benefits of liver and other organ meats in a convenient capsule form. It’s designed to help you overcome nutrient deficiencies and optimize your intake of essential vitamins and minerals—so you can live your best life.

  • Synergistic blend of five nutrient-dense organs  
  • Sourced from 100% pasture-raised cows that are never given antibiotics, growth hormones, or stimulants
  • Equivalent to eating one to two servings of fresh organ meat a week
  • Formulated by globally-renowned Functional Medicine clinician Chris Kresser
  • Made without gluten and GMOs
  • Manufactured in the US in a certified GMP facility

Signs You Need Bio-Avail Organ

Fatigue, lethargy, low energy

Low libido and vitality

Declining physical and mental performance

Weak bones and ligaments

Brian fog, poor memory, lack of focus

Dry skin, brittle hair and nails

What You'll Feel Using Bio-Avail Organ

  • All-day energy and elevated mood

  • Upgraded performance and recovery

  • Better focus, memory, and attention

  • Restored libido and vitality

  • Stronger bones and tissues

  • Supple skin, hair, and nails

  • Improved nutrient status

Meet Chris Kresser, your
Trusted Health & Wellness Guide

Founder & Functional Medicine Clinician

  • Globally renowned expert with over 15 years of experience
  • Dedicated to helping people improve their health by addressing modern challenges and nutrient gaps

Author & Educator

  • Treated thousands of patients
  • Trained more than 2,000 healthcare professionals
  • Gained valuable insights into functional medicine and nutrition

"I'm excited about Adapt Naturals and Bio-Avail Multi. Chris is a leading clinician, educator, and researcher in the Functional Medicine space. I've learned a lot from him about nutrition and supplements over the years, and I know his products are fueled by high-quality, evidence-based ingredients you can trust."

Dr. Mark Hyman MD

14-time New York Times best selling author and founder of the Cleveland Clinic Center for Functional Medicine

"Chris Kresser is one of the sharpest minds in the functional / integrative medicine space. I have reached out to Chris many times when working to unravel my own health journey and his insights have always been incredible. Given all that, I'm super excited for the release of Adapt Naturals line of supplements, especially Bio-Avail Multi. Chris and I are aligned in that we believe the bulk of our nutrition should come from whole, minimally processed foods, but we also recognize that the right supplement, at the right time can 'change everything.'"

Robb Wolf

Former research biochemist and 2-time New York Times bestselling author of The Paleo Solution and Wired To Eat.

"I can't think of a better person to formulate supplements than Chris Kresser. I trust his ability to skillfully combine ancestral wisdom with modern science and cutting-edge research. Taken together, the products offer a well-rounded and complete way to boost your nutritional status. I am excited about this high-quality, comprehensive new product line - I strongly recommend it!"

Dr. Akil Palanisamy MD

Harvard-trained physician, author, speaker, and holistic medicine expert in integrative and functional medicine

"I trust Chris Kresser with my life, and you will too."

Sara Gottfried MD

Harvard Trained Physician and New York TimesBestselling author of The Hormone Cure

About your FREE Bio-Avail Colostrum+

Grass-Fed Colostrum with Lactoferrin and Beta-Glucan

Bio-Avail Colostrum+ is the first and only product on the market that combines cold-processed colostrum from grass-fed cows with two other “immune health superstars”: lactoferrin and beta-glucan.

Unlike any other colostrum supplements, which only provide colostrum, Bio-Avail Colostrum includes 100 mg of lactoferrin and 200 mg of beta-glucan, 2 other powerful nutrients that support gut and immune health.

Bio-Avail Colostrum+ is the first and only supplement to combine all 3 of these ingredients in a single product.

60-Day Money-Back Guarantee We stand behind the quality of our products, and we want you to be completely satisfied with your order.

The Adapt Naturals Standard

In our increasingly toxic world, the last thing you want to worry about is a lot of artificial junk in your supplements. Adapt Naturals supplements are made with the cleanest possible ingredients, without gluten or GMOs. Our products are manufactured in a U.S. facility that meets the NSF’s rigorous GMP regulatory standards.

Customer Reviews

Based on 58 reviews
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Kristen Wisley
The best!

The best organ supplement out there! Thank you so much I notice a difference in my energy right away.

Hi Kristen, We are happy you are getting the energy you need from our Bio-Avail Organ. We hope as you continue to supplement on this product, you will notice other improvements. Thank you for sharing your experience. All the best!

J
Jason
Energy for my body and mind

I have a physical job with not much sleep . I finally found a multi vitamin that’ gives me energy and has my mind and body feeling right I used the multi along with the Bio organ and felt great . Ive been searching for quality ingredients for a long time and I finally found it here.

Hi Jason, Thank you for reviewing our Bio-Avail Organ. We are happy to know with the combination of this product along with the Bio-Avail Multi, your energy has improved and your are feeling better overall. We wish you all the best on your supplement journey.

M
Michael Saltzer
Great Products!

I have been looking for a vitamin/supplement stack that I could really get behind. Chris has created such a product. I have been using the core stack for a couple of weeks and I can definitely feel the difference. I’m no longer tired in the middle of the afternoon and I’m sleeping much better. Thanks for the wonderful supplements Chris. Keep up the good work. I can’t wait to see what else you have in the works.

Hi Michael, We are happy you found our Bio-Avail Organ and its working well for you. Thank you for reviewing this product and for supporting our brand. All the best!

C
C.

I never received my order, and it is impossible to contact someone to help me

Hi there, can you please contact us using the contact page. Be sure to send your order number and we'll get this straightened out for you!

M
Michelle L
Final piece of the puzzle

My daughter is pregnant and has been taking quality supplements from the beginning but due to severe nausea and food aversions to almost all food, she was very nutrient deficient. I bought these organ supplements and she added these to her daily supplementation and after about a week of taking them, she said I think we finally found the final piece of the puzzle. Things have leveled out now and for the first time after washing her hair, there’s been no hair loss at all which is a miracle. I’m so greatful for this supplement as well as several other adapt natural ones as they truly do make a huge difference if you give them time.

Hi Michelle, We are happy your daughter could have received nutrients from our Bio-Avail Organ that is needed in her pregnancy. We wish her the best of health and a safe delivery. Thank you for reviewing this product!

Your Questions Answered

We know that most people today can’t stand the taste or texture of organ meats—which is exactly why we made this supplement. You can get the benefits of eating organ meats without preparing or tasting them!

2022 study published in the journal Frontiers of Nutrition found that organ meats comprised four of the seven most nutrient-dense foods we can eat—with liver at the top of the list. Organs are especially rich in B vitamins like folate and B12, minerals like iron, magnesium, selenium and zinc, fat-soluble vitamins like A, D, E and K, and other essential nutrients like choline that most people don’t get enough of.  


Organ meats are truly “nature’s multivitamins.” A single serving of liver provides:

Taking the recommended dose of six capsules of Bio-Avail Organ each day is equivalent to eating one to two servings of fresh organ meats per week. This is exactly what our founder, Chris Kresser, and other health experts recommend. As you can see from the table above, organ meats are so potent and nutrient-dense that you don’t need to eat more than a couple of servings a week to benefit!

Each bottle contains a 30-day supply. We suggest ordering in bulk to save money and receive additional value. If you order 3 bottles, you’ll save 10% on each bottle and get a free, one-year supply of vitamins D3/K2 for one person. If you order 6 bottles, you’ll save 20% on each bottle and get a free, one year supply of D3/K2 for two people. You will also receive free shipping & handling when you order 3 or more bottles.

Most people see positive changes like more energy, deeper sleep, greater libido, and better mental and physical performance within a couple of weeks. That said, nutrient deficiencies take years—or even decades—to develop, and they can take months to fully correct. We suggest giving Bio-Avail Organ at least three months before determining whether it is working for you.

The cost of shipping for 1-2 bottles is $6.99. Shipping is free for orders of 3 or more bottles.

We ship most orders within one business day. Most orders take 2-3 days to arrive once shipped.

Bio-Avail Organ is manufactured in a U.S. facility that meets the NSF’s rigorous GMP (Good Manufacturing Practices) regulatory standards.

The recommended dose is six capsules per day taken with food. We suggest taking three capsules in the morning with breakfast and three in the evening with dinner. If you practice intermittent fasting and do not eat in the morning, you can either take your first dose with your first meal later in the day, or take it without food in the morning. You may also take all six capsules at once, or two capsules three times a day, if you prefer. Since this is a whole-food supplement, you’re free to consume it however is most convenient for you!

As noted above, nutrient deficiencies can take years (or even decades to develop) and many months to correct. For this reason, we suggest that you take Bio-Avail Organ for at least three months before you determine whether it works for you. 

That said, we know that each individual is different, and we want you to be completely satisfied with your purchase. If you’re unhappy with your order for any reason, simply contact us and we’ll give you a full refund with no questions asked.