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

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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 126 reviews
Unexpected, yet happy, results

I started taking the Core Plus Bundle in January. I think the changes felt subtle for me. The biggest change was that in May, I found out I was pregnant! We were not actively trying to conceive, but we were willing to let children come as God wished (we currently have 8 living). The youngest is nearly 4, and I'm 46 years old, so I thought those were all I was going to have. To have such a pleasant surprise is, I think, a testament to the benefits of the supplements that put my body in a such a state to be able to conceive again.

Hi Renee, We are thrilled to hear that our core plus bundle has contributed positively to your health. We hope as you continue to supplement with them you will notice other positive changes. All the best in your pregnancy journey. Thank you for leaving us a review!

These vitamins make me feel vibrant.

When I started my health journey, I would have told you that I ate clean and that I got all the nutrients I needed from food. The first blood test I got from a functional medicine doctor told me otherwise, I was deficient in most vitamins, and my hormones were a mess. I took a number of supplements and did a little detox, and then I switched over to these vitamins. I started with recommendations from the quiz, but after a month I felt so great, so much better that I switched to the core bundle. My energy level is great - consistently, and I sleep better than I have in years. When I get my bloodwork back now - it is perfect across the board. I feel great, and I am appreciative of the work and care that go into making a product that is truly special.

Hi Diane, We are happy our core plus bundle is working for you. It's great to hear you are seeing improvements in your energy level, sleep and your blood works. We appreciate your review!

Naomi Gabot
Adapt naturals

I have been following Chris Kresser’s work for a few years and really trust his advice. I was excited to try his supplement line. It has given me a lot of energy throughout the day. I tried his omega 3 plus and my aches and pains have decreased significantly

Hi Naomi, Thank you for trusting our brand. Chris has done a lot of work and research to ensure he is providing customers with high quality products that is beneficial to their health. We are happy you found our supplements along with the information to be beneficial. We appreciate your review!

Outstanding Product Line

We trust his products because we trust Chris Kresser and his science based approach. He’s done the homework so we don’t have to. He’s got all the information, personal experience and podcasts with other experts to support his products which gives us confidence and peace of mind that his supplements are right for us.

Hi Kerri. Thanks for trusting Adapt Naturals with your health! We're glad to know you're pleased with the Core Plus Bundle. Thank you for leaving a review!

Rebecca Litsey
Adapt Naturals After Five Months

After 5 months of taking Adapt Natural vitamins, I’m sold on the convenience of using the product. No more shopping for individual vitamins and not knowing if they are clean products. The biggest change I see is my skin. I’m also 70 and didn’t anticipate seeing my skin get smoother and visibly healthier. I love the Adapt Naturals!

Hi Rebecca, Hooray! We are happy you have seen a noticeable difference in your skin from taking our core plus bundle. We hope as you continue supplementing on our products you will experience other great benefits. Thank you for reviewing our core plus bundle!