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.

Purchase type options
Delivers every

Fast Shipping on orders over $85

60-day Returns

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.

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.

Customer Reviews

Based on 157 reviews
Quality Matters

I purchased Bio-Avail Multi because of its high quality. It’s nice to know I’m getting what the label says. Thanks for setting high standards.

Hi Kathleen, Thank you for reviewing our Bio-Avail Multi. We hope you experience all the benefits of this great product. Best of Health!

Sally Amanda Brown
Bio-Avail Multi is great!

I have been searching for a comprehensive multivitamin to make life my simpler and better. For many years I have been purchasing supplements separately, from different sources, in an effort to cover sll the important bases. Chris Kresser does his research, so I decided to try his Bio-Avail Multi. It is a life saver. I have more energy and am sleeping better, and love the simplicity of a trusted multi. Thank you!

Hi Sally, Thank you for trusting our brand and decided to try our Bio-Avail Multi. We are pleased to hear your energy and sleep has improved since you started this product. We appreciate your review. All the best!

Kathy Stone
Bio-Avail Multi

I am so glad I decided to purchase Bio-Avail Multi. My stomach usually does not do well with vitamins however with Bio-Avail I have not had one stomach issue which increases my desire to take them! I have noticed my fingernails are growing and overall, I feel better, healthier!

Hi Kathy, We are happy your are feeling healthier since you've tried our Bio-Avail Multi. Thank you so much for your support. We appreciate your review!

Rex Luttrell
Great Product

I've taken vitamins for years and this is one the best I've had with noticeable results.

Hi Rex, We are happy to hear you have noticed positive changes from our Bi0-Avail Multi. We appreciate you taking the time out to leave us a review! Best of Health.

Heather Fish
Bio Available Multi and Colostrum

I am very happy with the bio available multivitamins from Adapt Naturals. My husband uses them, and I order them for myself as well. It is such a comprehensive multivitamin and the quality of supplements from Adapt Naturals is unsurpassed. The proof is in my recent bloodwork! Very happy with the results.

I previously was one to purchase Armra colostrum on a monthly basis, and this past month I switched and purchased Adapt Naturals. The one complaint I have is that it will not dissolve in the water so when you go to drink it, all of the colostrum sticks to the side of the glass and is very difficult to get out. I feel like I have to use a spoon to scoop all of it out because it is too expensive to wash down the drain!

Hi Heather, Horay! Its indeed a pleasure to hear our Bio-Avail Multi and Colostrum is working well for you and your husband.
Here are a few tips for mixing Bio-Avail Colostrum+ with water:
Use room temperature (rather than cold) water. Cold water will make clumping worse.
Use a battery-powered milk frother, a bamboo whisk, or a small stainless steel kitchen whisk to mix the powder and water together.
Add the amount of powder you intend to take to an empty glass. Pour about an inch of room temperature water into the glass. Mix the powder together with the frother/whisk.
Once it’s mixed well together, add a few more ounces of water and drink.
Some people prefer to “dry dose” Colostrum+—scooping it directly into their mouth and washing it down with water. This is perfectly acceptable.We don’t recommend mixing it with smoothies or other food, because colostrum is best taken on an empty stomach. We also discourage mixing with coffee or hot food or beverages because heat can denature (destroy) the fragile proteins in colostrum.