Your FREE Bio-Avail Omega+ will automatically be added at checkout

15,800+ Happy Customers

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

  • "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.”

  • “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!

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What makes Bio-Avail Multi stand out?

  • 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.

  • 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.

  • 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

Why Bio-Avail Multi is superior
Vitamin C (mg)
Contains whole-food forms of vitamin C and a nearly 7x higher dose
Vitamin D (IU)
2x higher dose
Vitamin B6 (mg)
2x higher dose, superior P5P form for better absorption and biological activity
Vitamin B12 (mcg)
10x higher dose in superior form (methylcobalamin)
Folic acid/folate (mcg)
Higher dose and natural form of folate (5-MTHF) vs synthetic folic acid
3x higher dose, superior buffered chelate form for better absorption
Selenium (mcg)
5x higher dose, superior SelenoExcel with greater bioavailabilty

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 Cure

About your FREE Bio-Avail Omega+

The power of fish oil, curcumin, and black seed oil in a single product!

Bio-Avail Omega+ combines the purest and freshest fish oil with the most bioavailable forms of curcumin and black seed oil, so you can get the incredible benefits of these nutrients in a single, two soft-gel serving.

Bio-Avail Omega+ is the first and only product on the market that combines ultra-pure fish oil with the most bioavailable forms of curcumin (Novasol) and black seed oil (ThymoQuin).

It’s like taking three supplements in one product!

60-Day Money Back Guarantee

60-Day Money Back Guarantee

We're confident you'll love our products, but if you're not completely satisfied, we offer a 60-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

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

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.

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Your 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.  

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

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.

Customer Reviews

Based on 198 reviews
Ant Baller



I am absolutely obsessed with the Adapt natural supplement regimen. I’ve never felt better. I rave about my new regimen to everybody.

Batoul Baterdouk
Great product

Light on stomach and effective

Hi Batoul, Thank you for sharing your experience with using our Bio-Avail Multi. We are pleased to know you are getting the benefits you need. Thank you for your support!

Aubrey Smith
Trusted Source

I love that I can trust the source of these vitamins and minerals and that I no longer have to order and take all the individual vitamins myself!

Hi Aubrey, Thank you for reviewing our Bio-Avail Multi. We are happy you are satisfied with it. We wish you all the best on your supplement journey!

Joshua Stoneberg
Streamline your life!

Knowing that I’m getting the proper daily amount of each ingredient and also knowing that the quality and absorption are on point puts my mind at ease and my body at peak performance.

Hi Joshua, We are happy you are getting the necessary benefits from our Bio-Avail Multi. Thank you for being an Adapt Naturals supporter!