Bio-Avail Multi
The Ultimate Whole-Food Multivitamin & Mineral Supplement
Bio-Avail Multi
The Ultimate Whole-Food Multivitamin & Mineral Supplement
A powerful blend of vitamins, minerals, and phytonutrients designed to support your nutritional needs and promote well-being.
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Discover vibrant energy, laser focus, restful sleep, and bulletproof immunity
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Slow the aging process with over 40 essential vitamins, minerals, and phytonutrients
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Supercharge your health with bioidentical nutrients that replicate ancestral diets
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Exceed RDAs for essential nutrients so you can thrive, not just survive
Warning: If taking a blood thinner medication, consult a health-care practitioner before use.
Exclusive Subscription Perks
| Order # | Gift | Value |
|---|---|---|
| 2 | FREE Storage Bottle | $5-$7 |
| 4 | FREE Adapt Naturals Frother | $28.00 |
| 6 | FREE Adapt Naturals Trucker Hat | $29.99 |
| 8 | Special Gift | $50 Value |
Address Diet-Induced Ailments (health issues linked to Western diets)
Bridge the gap in modern diets with whole-food nutrients.
SUPPORT YOUR BRAIN
Support choline levels (almost 100% deficient)
Sharpen focus and elevate mood with brain-specific nutrition.
Power Up with B Vitamins (up to 40% deficient)
Ensure optimal absorption and metabolism support.
Unlock Benefits of Vitamin K Blend (around 65% deficient)
Enhance bone and heart health with our comprehensive solution.
Powerful Nutrients & Vitamins
Natural Folate
700 mcg of 5-MTHF (methylated folate) for energy, brain health, and immune support.
Methyl B12
200 mcg of methylcobalamin (active B12) for cognitive function, mood, and brain and nervous system support.
Active B-Vitamins
Contains the most active forms of riboflavin (B2), pyridoxine (B6), and other B vitamins.
3,000 IU of Vitamin D3
A clinically-relevant amount of vitamin D3 for immune, bone, and cardiovascular health.
Bioavailable Minerals
Features chelated and/or bioidentical forms of magnesium, selenium, zinc, copper, and manganese.
Vitamin K Blend
Full-spectrum blend of K1 and K2 (in MK-4 and MK-7 forms) for optimal bone and cardiovascular health.
Choline Support
450 mg of choline equivalents for brain and nervous system support.
11 Phytonutrients
Broccoli, blueberry, elderberry, quercetin, bioflavonoids, and more.
200 MG of Betaine HCL
To support healthy digestion and optimal nutrient absorption.
Real Stories of Health and Happiness
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"I've seen a significant boost in energy since starting Bio-Avail Multi. Highly recommend!"
—Jane D. -
"This supplement has noticeably enhanced my cognitive function. I've never felt better!"
—Mark S. -
"I rarely get sick after taking Bio-Avail Multi. It's been a game changer for my immune health!"
—Olivia T.
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
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 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 ResultsDiscover the Bio-Avail Multi Advantage
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
Why Choose Bio-Avail Multi?
Our modern diets often fall short of providing the optimal amounts of essential nutrients our bodies need to function at their best. With Bio-Avail Multi, you can overcome nutrient deficiency and support your overall health and well-being. We've done the research, so you don't have to!
Formulated to Replicate Optimal Ancestral Diets
Changes in dietary patterns, declining soil quality, and a growing toxic burden have made it increasingly difficult to obtain adequate nutrients from our daily food intake. Bio-Avail Multi is designed to address these challenges by providing a comprehensive blend of essential vitamins, minerals, and phytonutrients that closely resemble those found in an ancestral, whole-foods diet.
Harness Years of In-Clinic Experience and Ancestral Wisdom
Backed by Adapt Naturals' 15 years of in-clinic experience and dedicated to creating supplements that make a meaningful difference, Bio-Avail Multi combines cutting-edge research with insights from ancestral wisdom to bring you a premium-quality supplement.
Unlock Your Optimal Health
Upgrade Your Wellness with Bio-Avail Multi—Essential Nutrition, Simplified
Get Healthier & Happier - Try Now
Good For You—And the Planet
You can’t have healthy humans without a healthy planet. That’s why Adapt Naturals is working toward zero plastic and landfill waste in our supply chain.
In the fall of 2023, we started transitioning our packaging to 100% compostable, stand-up pouches. They’re made from cellulose (wood pulp) and are free of PLA, BPA, PFAS, phthalates, and other harmful chemicals. They’re printed with non-toxic, compostable ink. The pouches are so clean and biodegradable that you can put them in your backyard or curbside compost bin!
Our sustainable packaging initiative will prevent over 120,000 plastic bottles from ending up in a landfill or the oceans. Thank you for being part of the solution and helping Adapt Naturals protect the beauty of our natural environment!
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.
Yes, all Adapt Naturals products, including Bio-Avail Multi, undergo rigorous third-party testing for purity and potency. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (CoAs) and test results on our website. This level of openness is almost unheard of in the supplement industry. It allows you to see exactly what’s in the product you’re putting into your body. Click here to view the most recent CoA and test results.
We ask that you store your supplements in a cool, dry place, and away from direct sunlight. We do not recommend you store them in the refrigerator, as the high moisture content can reduce their shelf life.
I love that Chris cares about the health of humans and makes such a wonderful product. I will be on this for many years to come!
Hey Marie,
Knowing that the person behind the formula genuinely cares about human health and putting that care into every ingredient decision is something we are so proud of and we are grateful it comes through for you. The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are all there because they actually work and many years to come is exactly the relationship we hoped to build. Thank you so much for sharing!
Not noticing a huge difference yet, but so glad for a multi that I can have confidence in.
Hey Jami,
Confidence in a multi even before the full effects build is such a great foundation and we love that you have that trust! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi work foundationally over time and the benefits tend to show up gradually as a steadier sense of energy and wellbeing rather than a dramatic overnight change. Keep going and we think you are going to start noticing more as the weeks build. Thank you for sharing!
I've never written a review for a multivitamin before, mostly because I've never really noticed a difference between taking one and not taking one.
But I've genuinely noticed a difference in how I feel, especially when it comes to my immune health since taking the Adapt Naturals multivitamin.
I've taken this multivitamin while recovering from several infections and feel that it's supported my recovery. Another huge plus is that it doesn't upset my stomach, which has been an issue with other supplements in the past.
I also really appreciate how comprehensive and thoughtfully formulated the blend is. It feels like a well-rounded approach to supporting overall health rather than just checking off the basics.
While it's a bigger financial investment than your average multivitamin, I genuinely feel it's been worth it. Since incorporating it into my daily routine, I've had fewer doctor's visits and have noticed a meaningful improvement in how I feel day to day. This one has definitely earned a permanent spot in my daily routine.
Hey there,
Never writing a multivitamin review before because nothing ever felt different and then genuinely noticing improved immune resilience faster recovery from infections no stomach upset and fewer doctor visits is such a meaningful and specific set of outcomes and we are so grateful you took the time to share it! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are all chosen specifically because the body can actually absorb and use them rather than passing them through and it sounds like your body is putting every bit of it to work. A permanent spot in your daily routine is exactly where we hoped it would land and thank you so much for this review!
I’ve been taking these Multis for a few months now and I definitely notice an improvement in my mood and overall well-being
Hey Lozzie,
A few months in and a noticeable improvement in mood and overall wellbeing is the methylated B vitamins and the full bioavailable nutrient complex in Bio-Avail Multi doing their foundational work every day. When the nutritional gaps are filled the whole system tends to respond in ways that show up in mood and energy first. Thank you so much for sharing!
Have been using the Multi and Biome protect and very happy with results. Like having product delivered to door.
good to do business with a company I trust.
Hey Nancy,
Happy results from both the Multi and Biome Protect delivered to your door from a company you trust...that is everything we set out to be and we are so grateful for your loyalty! Doing business with integrity and delivering consistently is something we take really seriously and knowing it comes through for you means the world. Thank you so much for sharing!
- 5 stars: 310 (86%)
- 4 stars: 24 (7%)
- 3 stars: 12 (3%)
- 2 stars: 6 (2%)
- 1 star: 7 (2%)
Chris and his team formulated the perfect blend when they created Bio-Avail Multi. And we love the packaging and the ability to reuse our amber glass bottle every month.
Hey Jane,
Top notch formulation no-waste packaging and excellent customer service all in one review, we are genuinely touched and so grateful! Chris puts the same level of care into every single aspect of Adapt Naturals from what goes into the formula to how it reaches your door and hearing that all three land for you means everything. And feeling a real difference in how you feel from your daily vitamin is exactly the outcome we set out to create. Thank you so much for sharing
I have been taking Bio Avail Multi and Omega + for 2-3 months now and I feel great. My anxiety has decreased, I feel more balanced emotionally, my concentration is better and my performance at work overall too. I never had such a great response with any other supplementation before.
Hi Ana,
Thank you so much for sharing this amazing experience! We're absolutely thrilled to hear about the improvements you're noticing—decreased stress, better emotional balance, improved concentration, and enhanced work performance. That's such a comprehensive transformation!
The combination of Bio-Avail Multi (with its bioavailable vitamins, minerals, and phytonutrients) and Bio-Avail Omega+ (with ultra-pure fish oil, NovaSol curcumin, and ThymoQuin black seed oil) working together is designed to support whole-body wellness at the cellular level. It sounds like your body is really responding to the quality and bioavailability of these ingredients.
The fact that you've never had such a great response with other supplements really speaks to the difference that premium ingredients and clinical formulation can make. Thank you for being part of the Adapt Naturals community and for taking the time to share such detailed feedback. We're so happy these products are making a real difference in your life!
Hi Kim,
Wow, thank you so much for this feedback! 'Best vitamin I have ever taken' is exactly what we hope to hear.
We're thrilled that Bio-Avail Multi is making such a difference for you. Our founder Chris Kresser put so much care into formulating it with the most bioavailable forms of vitamins, minerals, and phytonutrients so people can actually feel the difference.
Thank you for taking the time to share this. It truly means a lot to us and helps others understand the quality that goes into our products.
We're so grateful to have you as part of the Adapt Naturals community! Keep us in the loop :)!
I’ve been taking various Adapt Naturals products for about 8 months now, and I’m genuinely happy with all of them. I have a sensitive stomach, but these supplements are easy to digest and feel very gentle on my system.
Since starting them, my recent blood work has improved noticeably. My white blood cell count and vitamin D levels—typically on the lower side—are now in a better range. I feel more energized and well-nourished overall.
I’ve also been taking their fish oil. While I struggle with some spinal and muscle pain, I can’t say for certain that the fish oil has helped with that aspect, even though it’s marketed for muscle and joint support. That said, I’m doing physical therapy, acupuncture, and massage, and I’ve found physiotherapy especially helpful for my pain.
I’m still incredibly grateful for the clean, high-quality products. Thank you, Chris, for your dedication, research, and effort in creating such trustworthy supplements.
Hi Kate,
We can’t thank you enough for your long-term trust. Bio-Avail Multi and Bio-Avail Omega+ were created to deliver deeply bioavailable nutrients and support without harsh fillers or unnecessary additives—especially helpful for sensitive systems. We’re thrilled to hear your blood work has improved and that you’re feeling better overall!
My husband heavily researches everything we buy. He was impressed with the company and the quality of the vitamins. After taking them for only a couple of weeks, I feel an increase in energy, improved cognitive functioning, more stamina in my workouts, and an overall better sense of health. I have not taken a multivitamin in years. I highly recommend Adapt Naturals. You get what you pay for.
Hi Jennifer, Thank you for reviewing the Bio-Avail Multi. We're thrilled to hear of the positive changes you have noticed since taking this supplement. Thank you for making it Adapt Naturals! All the best.
I have been taking my Adapt Naturals bio -avail multi for two months now and I see a difference already. My energy is better, and I feel good, knowing that the percentages of the various vitamins and minerals are better than my Centrum For Men that I used to take. Keep up the good work, Adapt Naturals!
Hi Henry, Thank you for supporting Adapt Naturals. We are thrilled to hear your energy has improved and you are feeling great overall. Thank you for reviewing the Bio-Avail Multi!
I love that Chris cares about the health of humans and makes such a wonderful product. I will be on this for many years to come!
Hey Marie,
Knowing that the person behind the formula genuinely cares about human health and putting that care into every ingredient decision is something we are so proud of and we are grateful it comes through for you. The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are all there because they actually work and many years to come is exactly the relationship we hoped to build. Thank you so much for sharing!
Not noticing a huge difference yet, but so glad for a multi that I can have confidence in.
Hey Jami,
Confidence in a multi even before the full effects build is such a great foundation and we love that you have that trust! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi work foundationally over time and the benefits tend to show up gradually as a steadier sense of energy and wellbeing rather than a dramatic overnight change. Keep going and we think you are going to start noticing more as the weeks build. Thank you for sharing!
I've never written a review for a multivitamin before, mostly because I've never really noticed a difference between taking one and not taking one.
But I've genuinely noticed a difference in how I feel, especially when it comes to my immune health since taking the Adapt Naturals multivitamin.
I've taken this multivitamin while recovering from several infections and feel that it's supported my recovery. Another huge plus is that it doesn't upset my stomach, which has been an issue with other supplements in the past.
I also really appreciate how comprehensive and thoughtfully formulated the blend is. It feels like a well-rounded approach to supporting overall health rather than just checking off the basics.
While it's a bigger financial investment than your average multivitamin, I genuinely feel it's been worth it. Since incorporating it into my daily routine, I've had fewer doctor's visits and have noticed a meaningful improvement in how I feel day to day. This one has definitely earned a permanent spot in my daily routine.
Hey there,
Never writing a multivitamin review before because nothing ever felt different and then genuinely noticing improved immune resilience faster recovery from infections no stomach upset and fewer doctor visits is such a meaningful and specific set of outcomes and we are so grateful you took the time to share it! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are all chosen specifically because the body can actually absorb and use them rather than passing them through and it sounds like your body is putting every bit of it to work. A permanent spot in your daily routine is exactly where we hoped it would land and thank you so much for this review!
I’ve been taking these Multis for a few months now and I definitely notice an improvement in my mood and overall well-being
Hey Lozzie,
A few months in and a noticeable improvement in mood and overall wellbeing is the methylated B vitamins and the full bioavailable nutrient complex in Bio-Avail Multi doing their foundational work every day. When the nutritional gaps are filled the whole system tends to respond in ways that show up in mood and energy first. Thank you so much for sharing!
Have been using the Multi and Biome protect and very happy with results. Like having product delivered to door.
good to do business with a company I trust.
Hey Nancy,
Happy results from both the Multi and Biome Protect delivered to your door from a company you trust...that is everything we set out to be and we are so grateful for your loyalty! Doing business with integrity and delivering consistently is something we take really seriously and knowing it comes through for you means the world. Thank you so much for sharing!
This multi is so comprehensive, I stopped many other separate supplements I was on.
Hey there,
Comprehensive enough to replace a whole stack of separate supplements is the whole vision behind Bio-Avail Multi and we are so glad it is earning that spot! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients covering the nutritional bases that individual supplements were each trying to address is exactly what makes it such a reliable foundation. Thank you for sharing!
These are the best, cost effective multi vitamins on the market!
Hey Patrick,
Best and cost effective in the same sentence is such a great combination and we are so glad it is delivering on both! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients all in their most absorbable forms is what makes Bio-Avail Multi stand apart from anything else at this price point. Thank you so much for sharing!
I have been on several Adapt Naturals products for a few months now and I feel pretty good on them. I can’t say which is doing what, because I am taking them as a set, but overall I do like them!
Hey Valerie,
Feeling good across the whole Adapt Naturals stack and trusting the synergy of multiple products working together is such a healthy way to approach supplementation! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are laying a really solid nutritional foundation for everything else to build on. Thank you for sharing!
This multi covers everything I need on a daily basis - satisfied customer!
Hey Allyson,
Covering everything you need daily and a satisfied customer is the whole goal and we are so glad it is hitting the spot! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients all working together every day is what makes it such a reliable foundation. Thank you for sharing!
Multi-vitamins are tricky because how do you really tell they're working, especially if you're taking a handful of other things?! Right? ... but I really trust Chris' client work history and third-party testing and commitment to whole body health. I also love all the education and research that he sends out. I just know I can trust what's going into my body when I choose Adapt Naturals and that's worth the stress relief right there.
Hey Kate,
Trusting the third party testing Chris's clinical history and his commitment to whole body health as your benchmark for knowing what is going into your body is such a meaningful reason to choose a supplement and we are so honored to have earned that trust. The peace of mind that comes with it is real and we feel that responsibility deeply. Thank you so much for sharing!
I do feel a boost in clarity and energy from this multi, though it's only been a few weeks. It feels nourishing.
Hey there,
A boost in clarity and energy that feels genuinely nourishing after just a few weeks is such a lovely way to describe it and we love that! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are all working to fill the gaps and the benefits really do build the longer you stay consistent. Thank you so much for sharing!
Bio-Avail Multi fills in all the gaps my diet may be missing. I have better energy and rarely get sick.
Hey Jessica,
Filling in all the dietary gaps with better energy and rarely getting sick is exactly what over 40 bioavailable vitamins minerals and phytonutrients working together every day is designed to do. One less thing to worry about is such a great way to put it and we are so glad it is delivering that peace of mind. Thank you for sharing!
My health coach recommended this multi vitamin as the cleanest, best option and I’ve been taking it for 3 months and feel great. I know nutrient buildup takes a while but I trust this is doing its job.
Hey Christine,
A health coach calling it the cleanest best option three months in and feeling great with full trust that it is doing its job... that is everything we set out to create! The methylated B vitamins chelated minerals and over 40 bioavailable phytonutrients in Bio-Avail Multi are building exactly the kind of foundational nutritional support that shows up over time rather than all at once. Thank you so much for sharing!
I love that I can get adequate vitamin D and methylated B vitamins, along with a multi vitamin. It's helped raise my RBC and iron counts.
Hey Debra,
Adequate vitamin D methylated B vitamins and a comprehensive multi all in one formula and now raising your RBC and iron counts to show for it — that is the bioavailable forms of every nutrient in Bio-Avail Multi actually absorbing and doing real work in the body. Lab numbers do not lie and yours are telling a great story. Thank you so much for sharing!
I received the vitamins very quickly. I have just started taking them and wasn’t sure what to expect. I am feeling more energy.