Your FREE Bio-Avail Organ will automatically be added at checkout
Overcome Nutrient Deficiency and Feel and Perform Your Best with Bio-Avail Multi
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See What Others Are Saying About Bio-Avail Multi
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"About 6 months ago, I had the beginnings of an autoimmune disease that was causing horrible fatigue, skin issues, digestion issues, brain fog, and weight gain, just to name a few. Since starting Adapt Bio Avail Multi, along with a change in diet and lifestyle, my symptoms have gone away. Literally. I cannot recommend this product enough! It has changed my life."
—Jackie H. -
“This is a superb multi that has real nutrition and isn't made from synthetic ingredients. If you're eating a healthy diet, this supplement will help make up whatever nutrition is lacking from that diet.”
—C.G. -
“I feel so good taking the Bio-Avail Multi. I know great care and knowledge has gone into the product. I have noticed subtleties in myself that let me know this supplement is attending to any deficiencies I had, for example, my lips and skin are not as dry anymore. I am happy to include this great formulation into my health routine everyday.”
—Carla S. -
“This multi-vitamin complex is the first time a supplement has made a discernible difference in my energy!”
—Jennifer H. -
“Where do I start? I love my vitamins so much. I feel better everyday and stronger. Before I had no energy and felt tired after taking these vitamins I feel full of life they are so complete with all the nutrients my body desperate needs!”
—Magaly S. -
“This is my new favorite multivitamin. Worth every penny. I would highly recommend it everyone to try it out.”
—Eric H.
Introducing the first Multivitamin + Greens & Reds Powder—All in One Pouch!
We created Bio-Avail Multi to make it easy for you to get the full spectrum of nutrients you need to thrive, from vitamins and minerals like B12, vitamin D, and magnesium to phytonutrients like polyphenols, bioflavonoids, and carotenoids.
Unlike most multivitamins, which only provide vitamins and minerals, Bio-Avail Multi includes essential vitamins and minerals and a full range of research-based phytonutrients like lutein, lycopene, broccoli seed extract, and more.
It’s like taking a multi, greens, and reds powder in one supplement!
Get Bio-Avail Multi NowWhat makes Bio-Avail Multi stand out?
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Easy To Absorb
Most multi's contain cheap, synthetic ingredients that are poorly absorbed. Bio-Avail Multi contains food-based or bioidentical nutrients foroptimal absorption and assimilation.
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Full-Strength
Most multi's don’t contain enough nutrients to move the needle. Bio-Avail Multinot only meets but exceeds the RDAfor most essential vitamins and minerals, so you canfeel and perform your best.
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Great Value
Bio-Avail Multi contains over 30 vitamins, minerals, and phytonutrients—which means you can streamline your daily supplement routine and save money and time!
Conquer nutrient deficiency and take back your health!
Did you know that humans need at least 30 micronutrients to function optimally? Virtually every process that happens in the body requires a vitamin, mineral, or other nutrient.
This explains why nutrient deficiencies can lead to a such a wide range of problems, from low energy to poor sleep to weight gain to an increased risk of chronic disease and premature death.
Sadly, the latest research suggests that the vast majority of Americans fall short on not just one but several essential vitamins and minerals.
Add back in what the modern world has squeezed out.
Our busy, fast-paced lives make it difficult for most of us to eat a clean, whole-foods diet 100 percent of the time.
Even if we do, declining soil quality, a growing toxic burden, and other challenges in the modern world have made it difficult—if not impossible—to meet our nutrient needs through food alone.
Supplements can help close the gaps and ensure that we’re getting all of the nutrients we need to thrive and live a long, healthy life.
But not just any supplements will do…
Supercharge your health with full-spectrum, bioavailable nutrients.
Frankly, most multivitamins on the market aren’t worth taking.
They’re made with cheap, synthetic ingredients, they don’t have enough of what we need (or too much of what we don’t), and they don’t contain the phytonutrients that promote optimal health and longevity.
To get the full benefit of a multi, you need highly absorbable essential vitamins and minerals and phytonutrients in a carefully balanced formula.
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Adapt Naturals Bio-Avail Multi
Bio-Avail Multi is the most complete, advanced multivitamin formula on the market. It was formulated to help you overcome nutritional deficiencies and optimize your intake of vitamins, minerals, and phytonutrients—so you can live your best life.
- Over 41 vitamins, minerals and phytonutrients
- Naturally-occurring, bioavailable ingredients for maximum absorption and efficacy
- Full-strength formula that far exceeds the RDA for several nutrients
- Mimics nutrient intakes in a whole-foods, ancestral diet
- Formulated by globally-renowned Functional Medicine clinician Chris Kresser
- Made without gluten and GMOs
- Manufactured in the US in a certified GMP facility
Discover the Bio-Avail Multi Advantage
Signs You Need Bio-Avail Multi
Low energy levels or chronic fatigue

A weakened immune system or frequent illnesses
Brain fog or difficulties with concentration and memory

Skin problems, brittle hair and nails

Difficulty falling or staying asleep
Nutrient deficiencies due to poor diet or lifestyle
What You'll Feel Using Bio-Avail Multi
Increased energy levels and vitality
Improved mental clarity and cognitive function
Enhanced immune system support and resilience
Correction of nutrient deficiencies for improved overall health
Greater endurance and support for an active lifestyle
Promotion of overall well-being and healthy aging
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 CureChoose Your Bio-Avail Multi Package
FREEpouch of Bio-Avail Organ included. Plus, free shipping when you order 3 or more pouches!
Free gift not included in recurring subscription orders.
- FREE Bio-Avail Organ
- 90-Day money back guarantee
Free gift not included in recurring subscription orders.
- FREE Bio-Avail Organ
- FREE Shipping
- 90-Day money back guarantee
Free gift not included in recurring subscription orders.
- FREE Bio-Avail Organ
- FREE Shipping
- 90-Day no questions asked guarantee
About your FREE Bio-Avail Organ
Nature’s Ultimate Nutrient Powerhouse
Experience the incredible benefits of organ meats without having to eat or prepare them. Made with 100% grass-fed liver, heart, kidney, pancreas and spleen. Supercharge energy, mood, and performance, restore youthful vitality and slow aging, replace nutrients missing from modern diets.
90-Day Money Back Guarantee
We're confident you'll love our products, but if you're not completely satisfied, we offer a 90-Day, 100% money-back guarantee on all purchases. Simply contact us for a full refund, no questions asked. Buy with confidence knowing you're covered by our guarantee.
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.
Third Party Lab-Tested
At Adapt Naturals, all of our products are third-party tested and validated, and we are always happy to share these results with customers. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.
Learn MoreYour Questions Answered
Claiming that multivitamins don’t work is like saying “medications don’t work” or “food is good for you.” The efficacy of a multivitamin depends on the quality, form, and amount of its ingredients, and these vary tremendously from product to product. Most studies of multivitamins use generic products that can be purchased at Walmart, Costco, or other outlet stores because that’s what most Americans are buying. Bio-Avail Multi is a clinician-grade product with full-strength, superior ingredients carefully curated by one of the most respected Functional Medicine clinicians in the world, Chris Kresser. It cannot be compared to generic multis that you can find in a local store!
Each bottle contains a 30-day supply. We suggest ordering in bulk to save money and receive additional value. If you order 3–5 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 or more 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 three or more bottles.
Most people see positive changes like more energy, deeper sleep, 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 Multi at least three months before determining whether it is working for you.
Since each person's vitamin D is affected differently by sunlight, nutrient absorption from food and supplements, and mobilized body stores, there is no one-size-fits-all guideline for how much an individual needs. Some people will be fine with the 2,000 IU that is in Bio-Avail Multi, but others will need more to maintain an optimal serum vitamin D level. The same is true for K2. There is 50 mcg in Bio-Avail Multi, but people who want additional support for bone, cardiovascular, and immune health may choose to take more.
The cost of shipping for 1 bottle is $7.99. Shipping is free for orders of 3 or more bottles.
Allow 1-2 days for order processing and 4-7 days for shipping, excluding weekends
Bio-Avail Multi is manufactured in a U.S. facility that meets the NSF’s rigorous GMP (Good Manufacturing Practices) regulatory standards.
The recommended dose is four capsules per day taken with food. We suggest taking two capsules in the morning with breakfast and two 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. (Note that a small percentage of people may feel nauseous when taking vitamins and minerals on an empty stomach.) You may also take all four capsules at once if you prefer.
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 Multi 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.
I feel like I am actually getting a lot out of these vitamins. I believe they are more Bioavailable than other supplements I have used for years!
Hey Margaret,
You are absolutely right and your instinct is spot on! Bioavailability is everything when it comes to vitamins and minerals because even the most impressive looking label means very little if your body cannot actually absorb and use what is in it. Bio-Avail Multi uses methylated forms of the B vitamins including B2 B6 folate and B12 chelated minerals and over 40 vitamins minerals and phytonutrients that Chris specifically chose because the body recognizes and uses them rather than just passing them through. Feeling like you are genuinely getting something out of your vitamins is exactly how it should feel and we are so glad you found us. Thank you for sharing!
I take this multi daily. My functional med Dr. is impressed with the ingredients. It is so comprehensive that she was able to eliminate some of the other supplements in my stack.
Hey Kristen,
A functional medicine doctor impressed enough by the ingredients to eliminate other supplements from your stack...that is genuinely one of the highest compliments we could receive! Bio-Avail Multi uses methylated and bioactive forms of its vitamins and minerals across over 40 carefully chosen nutrients because Chris designed it to be comprehensive enough to do real work rather than just check boxes. We are so glad it is earning its place in your routine and thank you for sharing!
I love that this multi has several vitamins and minerals that other brands don’t include.
Hey Sarah,
The thoughtfulness behind what goes in and what is intentionally left out of Bio-Avail Multi is something Chris spent a lot of time on and we are so glad it shows! The methylated B vitamins chelated minerals whole food phytonutrients and over 40 carefully chosen nutrients work together to fill the gaps that most modern diets leave behind. Thank you for sharing!
I've been taking the multi for a while now, though still struggling with consistency. I use SuppCo, an app that rates supplements and Adapt Naturals is a HIGH QUALITY brand with Multi specifically scoring high. That's a huge comfort knowing money is well spent!
Hey Katherine,
Consistency is one of the hardest parts of any supplement routine and we completely get it! What a great validation to have SuppCo confirm what you are already feeling, that the quality is real and the money is well spent. Bio-Avail Multi uses methylated and bioactive forms of its vitamins and minerals including methylated B vitamins chelated minerals and over 40 vitamins minerals and phytonutrients because Chris designed it to actually absorb and work rather than just look good on paper. Third party ratings like that mean a lot to us because we really do put the work in on every formula. Keep going with the consistency and you will feel the difference build over time! Thank you for sharing.
Love the natural ingredients
Hey Penny,
Natural ingredients done right is the whole philosophy behind everything Chris formulates and we love that it resonates with you! Bio-Avail Multi is designed to closely resemble the nutrients found in an ancestral whole foods diet so rather than synthetic isolated compounds you are getting bioactive B vitamins chelated minerals whole food phytonutrients and over 40 nutrients your body recognizes and actually knows how to use. Thank you so much for sharing!

