YOUR FREE BIO-AVAIL Organ WILL AUTOMATICALLY BE ADDED AT CHECKOUT ($59.83 Value)

Overcome Nutrient Deficiency and Feel and Perform Your Best with Bio-Avail Multi

Special Offer: Free Bio-Avail Organ ($59.83 Value) Included With First Purchase

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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 Multi not only meets but exceeds the RDA for most essential vitamins and minerals, so you can feel 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

 
Competitors
Why Bio-Avail Multi is superior
Vitamin C (mg)
400
60
Contains whole-food forms of vitamin C and a nearly 7x higher dose
Vitamin D (IU)
2000
1000
2x higher dose
Vitamin B6 (mg)
6.7
3
2x higher dose, superior P5P form for better absorption and biological activity
Vitamin B12 (mg)
200
20
10x higher dose in superior form (methylcobalamin)
Folic acid/folate (mcg)
680
400
Higher dose and natural form of folate (5-MTHF) vs synthetic folic acid
Magnesium
150
50
3x higher dose, superior buffered chelate form for better absorption
Selenium (mcg)
100
19
5x higher dose, superior SelenoExcel with greater bioavailabilty
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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. 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

    14x NY Times Bestselling Author

  • "I have seen firsthand and trust Chris Kresser's expertise with my life—I'm confident you will too."

    Dr. Sara Gottfried

    NY Times Bestselling Author

  • "Chris Kresser's Adapt Naturals line reflects our belief: the right supplement at the right time can 'change everything.'"

    Robb Wolf

    NY Times Bestselling Author

Try Bio-Avail Multi for 60 Days and Get a FREE Pouch of Bio-Avail Organ

30 day supply delivered monthly

What You'll Get:

✓ 30-Day Supply Bio-Avail Multi—10% Off Every Order + Free Bio-Avail Organ With Your First Subscription Order
✓ FREE Pouch of Bio-Avail Organ—$59.83 Value
✓ 90-Day Money-Back Guarantee—Try It Risk-Free

$123.56 USD $57.36 USD
Save $66.20 (53%)

Charged every 30 days. Change or cancel anytime.

Try Bio-Avail Multi Risk Free

  • 90-Day Returns
  • Easy cancellation

"Adapt Naturals is not just higher quality, it's practically in a different category entirely.”

Armen A.

About your FREE Bio-Avail Organ

The Easiest Way To Tap Into an Energy Powerhouse!

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

A 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!

Get Your Free Bio-Avail Organ now

90-Day Money Back Guarantee

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

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 with Transparent Results

Third-Party Lab-Tested with Transparent Results

We conduct third-party testing on all our products to verify their purity, potency, and safety. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (COAs) and test results directly on our website. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.

See Test Results

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!

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.

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.

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.

Each bottle contains a 30-day supply.

Customer Reviews

Based on 298 reviews
87%
(259)
7%
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97.2
99.6
J
Janie G
Best one available!

I’ve taken many brands of multivitamins throughout the years, but I must say that Adapt Natural’s Bio-Avail have been the best for me! I like the clean ingredients and have had no digestive issues while taking them at all. Two in the morning and two later in the afternoon works out well for me and my family. Thanks for such a great product!

J
Jennifer Hoyer
Love these Supplements!

I’ve been taking Adapt Naturals for several months now — the multivitamin, Omega supplement, and magnesium — and I can honestly say I feel fantastic. What stands out to me most is the quality and bioavailability of their formulas. You can tell these supplements are designed with real science and attention to how the body actually absorbs nutrients.

As a health coach, I also recommend these to my clients all the time. I love knowing I’m giving my body — and guiding my clients to give theirs — nutrients in their most natural and usable form. I’ve noticed a real difference in my energy, mood, and overall well-being. It’s also reassuring to know that the ingredients are clean and thoughtfully sourced — no unnecessary fillers or gimmicks.

I’ve tried plenty of supplements over the years, but Adapt Naturals truly stands apart. I feel supported from the inside out and can confidently say I’m sticking with this line for the long haul.

Hi Jennifer,

Wow, this means so much to us. Thank you for taking the time to share such thoughtful feedback, and for trusting Adapt Naturals both personally and professionally with your clients’ health.
We put an enormous amount of care into every formula, from using highly bioavailable nutrients that the body can truly absorb, to sourcing clean, evidence-based ingredients without fillers or unnecessary additives. Hearing that you feel that difference in your own energy, mood, and well-being is exactly why we do what we do.
It’s also incredibly meaningful to know that, as a health coach, you’re sharing Adapt with others who can benefit. Thank you for being part of the Adapt communit, and for helping others experience the power of foundational nutrition.

C
Candace
Silicone dioxide

Silicon dioxide are nanoparticles, known as amorphous silica, they have been found to cause significant DNA damage. Exposure to these nanoparticles can lead to a concentration- and size-dependent decrease in cell viability, increased intracellular reactive oxygen species (ROS) levels, and DNA damage. These effects are closely correlated with increased oxidative stress, which can have serious implications for human health. The research highlights the need for careful monitoring and evaluation of the toxicity and hazards associated with engineered nanoparticles, including silicon dioxide.

Hey Candace,

Thank you so much for sharing your thoughts and concerns — we completely understand your care around ingredient safety.
The substances you’re referring to are excipients, which help prevent the capsule material from clogging machines and reduce breakage during production. Nearly all supplement manufacturers use them for consistency and quality.
Our founder and chief formulator, Chris Kresser, has reviewed the research extensively, and the evidence supports the safety of silicon dioxide at the levels used in dietary supplements. For example:
The European Food Safety Authority (Aguilar et al., 2009) found no adverse effects from silicon compounds used in supplements.
A re-evaluation of silicon dioxide (Younes et al., 2018) concluded it does not raise significant safety concerns when used as a food additive.
Other studies (Jugdaohsingh et al., 2013; Koizumi) have shown no mutagenic activity and confirmed its safe bioavailability.
Companies like Thorne and Pure Encapsulations use specialized equipment that eliminates the need for excipients — something we hope to achieve as Adapt Naturals continues to grow.
We hope this helps clarify and reassure you that our formulations are developed with both safety and efficacy as top priorities. Take care!

L
Laura
My go-to multi!

Love taking this multi everyday! Feeling great on it!

Hi Laura,

We’re so glad to hear Bio-Avail Multi has earned a spot in your daily routine! This formula was built to be a truly foundational supplement—with highly bioavailable forms of essential vitamins and minerals to help fill common nutrient gaps and support energy, immune function, and overall well-being.

Thanks for making us part of your wellness routine—we’re so happy it’s helping you feel your best!

D
Donna Niemann
still being shipped

ridiculous the time its taken since I ordered these, you processed my invoice received my money had me set up to receive another shipment and I HAVE YET TO RECEIVE MY ORDER😞

Hi Donna,

We’re very sorry for the frustration you’ve experienced with your order. Please know that at Adapt Naturals, we take feedback like this seriously and will continue striving to do better because of it. Thank you for working with us and for your patience. We truly hope that our supplements support your health regimen and help you feel significantly better as a result.

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