Core Plus Bundle

30 day supply

The Ultimate Daily Stack for Health and Longevity

Core Plus Bundle

30 day supply

The Ultimate Daily Stack for Health and Longevity

A 30-day bundle of five products that work together to close the nutrient gap and help you perform and feel your best.  

  • Supercharge your health with bioidentical nutrients that are easy to absorb

  • Exceed RDAs for essential nutrients so you can thrive, not just survive

  • Save money and time with a comprehensive daily stack that covers your bases

  • Prevent and reverse chronic health problems so you can live your best life

Purchase type options
Delivers every

Fast Shipping with Subscription

60-day Returns


Overcome Fatigue and Sluggishness

From all-day energy to improved exercise performance to higher libido, you'll feel more youthful and alive again.


Boost Cognitive Function and Elevate Mood

Experience sharper focus and attention, become more productive, and feel happier and more relaxed.


Protect Cellular Health and Extend Longevity

Nourish and protect your cells and tissues with key vitamins, minerals, and phytonutrients.


Go From Surviving to Thriving

Get the nutrients you need to feel and perform your best and live the life you want to live.

Core Plus Bundle Includes

Bio-Avail Multi

Bio-Avail Multi

A powerful blend of vitamins, minerals, and phytonutrients designed to support your nutritional needs and promo well-being.

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Bio-Avail Organ

Bio-Avail Organ

A blend of bovine organs—liver, heart, kidney, pancreas, and spleen—sourced from 100% grass-fed, grass-finished cattle.

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Bio-Avail Myco

Bio-Avail Myco

Full-spectrum blend of eight organic mushroom extracts that promote deep focus, sustained energy, and a sense of calm.

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Bio-Avail Mag

Bio-Avail Mag

Contains 300 mg of highly absorbable magnesium to close the gap between average US intake and the amount we need for optimal

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Bio-Avail E+

Bio-Avail E+

Contains 100% delta- and gamma-tocotrienols for optimal cardiovascular, bone, immune, and brain health.

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Real Stories of Health and Happiness

  • "I have taken Adapt Naturals Core Plus Bundle for a month and have already noticed several improvements."

    —Annie, Verified
  • “Taking the Core Plus Bundle has made me feel confident that I am meeting all my nutritional needs.”

    —Faith, Verified
  • “I have more energy, I’m sleeping better and I have much less aches in my joints.”

    —Diane, Verified

Discover the Core Plus Advantage

Natural, whole-food
Synthetic, fillers
Maximally absorbable
Low absorption
Health Focus
Addresses root causes
Addresses symptoms
Clinical Background
15 years in-clinic
Not typically
Supports soil health
Disregards soil health
Single-use plastics
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 Core Plus Bundle?

Our modern diets often fall short of providing the optimal amounts of essential nutrients our bodies need to function at their best. With the Core Plus Bundle, 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. The Core Plus bundle 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 Omega+ combines cutting-edge research with insights from ancestral wisdom to bring you a premium-quality supplement.

Signs You Need the Core Plus Bundle

Low energy levels or chronic fatigue

A weakened immune system or frequent illnesses

Brain fog, poor memory, trouble concentrating

Skin problems, brittle hair and nails

Difficulty falling or staying asleep

Nutrient deficiencies due to poor diet or lifestyle

What You'll Feel Using the Core Plus Bundle

  • Increased energy levels and vitality

  • Improved mental clarity and cognitive function

  • Deeper and more restorative sleep

  • 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

Core Plus Bundle

Unlock Your Optimal Health

Upgrade Your Wellness with Core Plus—Lifelong Health, Simplified

Get Healthier & Happier - Try Now

Your Questions Answered

Yes, all products in the Core Plus are made without gluten or GMOs.

You can learn more about each of the individual products on their respective pages:

- Bio-Avail Multi

- Bio-Avail Organ

- Bio-Avail Myco

- Bio-Avail Mag

- Bio-Avail E+

Refund Policy:

We stand behind the quality of our products, and we want you to be completely satisfied with your order. 

That’s why we offer a 60-day, 100% money-back guarantee on all purchases. 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. 

Late or missing refunds

Please allow 5-10 business days for the refund to process and reflect in your account. If you haven’t received your refund after 10 days, please contact us at

3-5 business days on average

We currently ship to the United States only.

Customer Reviews

Based on 135 reviews
Tina Fancher
Happy with the supplements and service

I've been taking the core plus bundle since the launch and added omega as soon as that became available. I feel good taking the supplements but I also felt fine before switching to this brand. The difference is 2 things: 1. I used to have to deal with many different websites, comparing prices, reviews, studies etc. and keeping my supplies steady. Now I've got everything in one place and Adapt makes it so easy for me to make adjustments to my subscriptions if I am ready for more when the date comes or if I want to delay for a bit. 2. I've followed Chris Kresser for a long time before he launched the supplements and I do trust that if he puts his name behind it then these really are the most bioavailable forms at the right dosages. I can stop the madness of spending tons of time trying to research every supplement myself.

Feeling Great!

I purchased the Core Bundle Pack and have been using it for over 4 months. It took some time, but after consistently taking the they for a couple of months I have more energy, am thinking clearer, and happy! This company will be my go to for supplements!

Hi Jennifer, We are so happy you found our core plus bundle beneficial to your health. Thank you for supporting Adapt Naturals! We appreciate your review!

Karin Anderson
Astounding results

I knew these supplements would be exceptional quality because they are from Kresser. I’ve been following him for years and he really helped a friend of mine with her thyroid (as his patient).

I had been wanting to try these supplements for a while but needed to use up what I had, and let’s face it, they are expensive. But were they worth it?

After about a week (which was really shocking to me) I was sleeping better, had more energy, less hungry, and felt more vital over all. This continues to improve with time. I truly did not expect such quick results. But I’m sold. I was so used to kind of dragging myself out of bed to start the day and struggling to get enough energy to want to exercise. Now I am the opposite. For the first time in YEARS, I am waking pretty refreshed and have to pace myself while exercising to not overdo!

Kind of amazing. I recommend Chris’ supplements to anyone and have already done so many times over. Very, very glad I finally bit the bullet and got them. I’m hooked!

Hi Kairn, We are thrilled to hear of your positive experience using our core plus bundle. Thank you for trusting Adapt Naturals with your health. We appreciate you leaving us a review!

Good energy and resilience

I was already taking a ton of vitamins and supplements but decided to try the Core Bundle plus Omega to pare down the number of bottles in my cupboard. What I notice is increased energy even when I don’t sleep well. And, I seem to ward off colds easier (everyone around me is getting sick). The Myco is a new supplement for me. I can tell it’s working. No fish burps with Omega, either. I feel like I’m getting fresh products. I trust Adapt Naturals to be the best quality out there because I’ve tried them all and can feel the difference.

Hi Michelle, Thank you for trusting Adapt Naturals with your health, we are so happy to hear our core plus bundle is working well for you and you have noticed increase energy since you started taking these supplements. We appreciate your review! Best of health.

Aisha Gantz

Since I have been using these products, I have not had dizzy spells or optical migraines. This was a problem most of my life. My body feels healthy and alert!

Hi Aisha , We are thrilled to hear you have noticed a difference in your overall health since you started our core plus bundle. Thank you for reviewing this product!