Bio-Avail Multi

120 capsules 30 day supply

The Ultimate Whole-Food Multivitamin & Mineral Supplement

Bio-Avail Multi

120 capsules 30 day supply

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.

  • Discover vibrant energy, laser focus, restful sleep, and bulletproof immunity

  • Slow the aging process with over 40 essential vitamins, minerals, and phytonutrients

  • Supercharge your health with bioidentical nutrients that replicate ancestral diets

  • 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.

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Revitalize Your Diet

Address Diet-Induced Ailments (health issues linked to Western diets)

Bridge the gap in modern diets with whole-food nutrients.


Nourish with Choline (almost 100% deficient)

Sharpen focus and elevate mood with brain-specific nutrition.

Boost Your Energy

Power Up with B Vitamins (up to 40% deficient)

Ensure optimal absorption and metabolism support.

Protect Your Bones & Heart

Unlock Benefits of Vitamin K Blend (around 65% deficient)

Enhance bone and heart health with our comprehensive solution.

Powerful Nutrients & Vitamins

Natural Folate

Natural Folate

700 mcg of 5-MTHF (methylated folate) for energy, brain health, and immune support.

Methyl B12

Methyl B12

200 mcg of methylcobalamin (active B12) for cognitive function, mood, and brain and nervous system support.

Active B-Vitamins

Active B-Vitamins

Contains the most active forms of riboflavin (B2), pyridoxine (B6), and other B vitamins.  

3,000 IU of Vitamin D3

3,000 IU of Vitamin D3

A clinically-relevant amount of vitamin D3 for immune, bone, and cardiovascular health.

Bioavailable Minerals

Bioavailable Minerals

Features chelated and/or bioidentical forms of magnesium, selenium, zinc, copper, and manganese.

Vitamin K Blend

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

Choline Support

450 mg of choline for brain and nervous system support.

11 Phtyonutrients

11 Phtyonutrients

Broccoli, blueberry, elderberry, quercetin, bioflavonoids, and more.

200 MG of Betaine HCL

200 MG of Betaine HCL

To support healthy digestion and optimal nutrient absorption. 

Real Stories of Health and Happiness

  • "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.

Discover the Bio-Avail Multi Advantage

Natural, bioidentical
Artificial, synthetic
Maximally absorbable
Low absorption
Health Focus
Addresses root causes
Addresses symptoms
Clinical Background
15 years in-clinic
Not usually
Supports soil health
Disregards soil health
Single-use plastic
Functional Medicine expert

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.

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

Bio-Avail Multi

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.

Starting in the fall of 2023, we’re 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.

Customer Reviews

Based on 143 reviews
Jennifer Canning
Great quality stuff!

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.

Better mood, no illness

I started the multivitamin and colostrum at the same time about 1.5 months ago. I’ve noticed a significant increase in mood. Also, my 7 year old and I have been sick so much this last fall, but I haven’t gotten any illnesses since I started taking both and my son has been sick once. I’ve also only been taking 3 capsules a day, since I’m about 115 pounds and read somewhere it’s formulated for a 150lb person. I’ll definitely be ordering more. Would love some vitamins formulated for kids as well. :)


I like it but I still have another unopened container and one opened one still to take. I am trying to do better with taking them morning & night

Acacia Rogers
I Feel More Alive

Even though I have been lifting and eating clean since about 17 years old (now 33), I had always struggled with energy, sleep, inflammatory issues, and my skin to name a few things. Im just a very sensitive human physically.
I had also donated a kidney in my mid 20s which furthers my energy troubles, but ive always been looking for solutions, especially with supplements. Ive purshased the Adapt Naturals Multivitamin and Organ supplement a few times now.
I 100% feel more alive and alert when actively taking these, especially the full dose. It helps with the brain fog, fatigue, lack of motivation, just most of the things that have always slowed me down. Im a mom and run multiple small businesses, in addition to my fitness regimen, so I need all the help I can get.
They are kinda pricey and its a lot of capsules to take in a day, but to me its worth it to keep buying them, and I know they are good quality which is something ive always been willing to spend a little more on.
Ive been following Chris's podcast for some time and I love what he does and the good information he spreads, so im happy to support his supplements. Especially when they are one of the few things in life that have actually helped me to be a happier and more functional human. So thank you.

Hi Acacia, We are happy you are experiencing the benefits of our Bio-Avail Multi, especially as a single mom who needs the energy and sleep to keep up with and properly care for your child. We hope as we continue to supplement on this product you will notice other great benefits. We appreciate your review!


Gets my nutrients easily

Hi Mary, We appreciate your purchase of our Bio-Avail Multi and is happy to hear this product is beneficial to your nutritional needs. Thank you for supporting Adapt Naturals!