Fertility Stack

30 day supply

Unlock your reproductive potential

Fertility Stack

30 day supply

Unlock your reproductive potential

  • Support optimal fertility with Bio-Avail Multi's comprehensive blend of prenatal vitamins and minerals

  • Nourish reproductive organs and balance hormones with Bio-Avail Organ's targeted desiccated organ extracts

  • Promote immune balance and gut health for a healthy pregnancy with Bio-Avail Colostrum+'s growth factors and immunoglobulins

  • Experience the transformative benefits of enhanced reproductive wellness for a healthy conception and beyond

Warning: If taking a blood thinner medication, consult a health-care practitioner before use.

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Support reproductive health and conception

Bio-Avail Multi and Bio-Avail Organ provide essential nutrients and targeted support for male and female fertility.


Promote healthy hormone production and regulation

Bio-Avail Organ's glandular extracts help balance key reproductive hormones for optimal fertility and overall health.


Strengthen defenses for a healthy pregnancy

Bio-Avail Colostrum+ delivers immunoglobulins and other factors to support immune balance and protection during conception and pregnancy.


Provide crucial nutrients for fetal development

Bio-Avail Multi's prenatal formula promotes optimal nutrient status for a healthy pregnancy and baby.

Powerful Nutrients & Vitamins

Prenatal Vitamin-Mineral Complex

Prenatal Vitamin-Mineral Complex

Bio-Avail Multi delivers a comprehensive blend of bioavailable vitamins and minerals, including folate, choline equivalents, and magnesium, to support optimal fertility and fetal development.

Heme Iron

Heme Iron

Bio-Avail Organ features heme iron from liver and spleen, the most bioavailable form of this critical conception mineral.

Grass-Fed Bovine Colostrum

Grass-Fed Bovine Colostrum

Bio-Avail Colostrum+ features 2.5 grams of nutrient-rich, cold-processed colostrum to support immune function, gut health, and overall wellness during conception and pregnancy.

Methylated B Vitamins

Methylated B Vitamins

Bio-Avail Multi includes methylated forms of folate and B12 to support fertility, proper fetal development, and healthy homocysteine levels.

Vitamin D3

Vitamin D3

Bio-Avail Multi contains 3,000 IU of highly bioavailable vitamin D3, which is crucial for fertility, immune function, and fetal bone development.



Bio-Avail Colostrum+ provides 100 mg of lactoferrin to help regulate immune function, promote a healthy microbiome, and support reproductive health.

Beta-Glucan (Wellmune®)

Beta-Glucan (Wellmune®)

Bio-Avail Colostrum+ includes 200 mg of Wellmune® beta-glucan to train the immune system for an optimal and balanced response during conception and pregnancy.

Chelated Minerals

Chelated Minerals

Bio-Avail Multi features highly absorbable forms of zinc, selenium, and other key minerals to support fertility, fetal growth, and maternal health.

Signs You Need Fertility Stack

Planning to conceive in the near future

Desire to promote normal menstruation and ovulation

Seeking healthy sperm quality

Difficulty conceiving

Nutrient deficiencies impacting reproductive health

Hormonal imbalances

Preparing for other fertility treatments

What You'll Feel Using Fertility Stack

  • Optimal reproductive health and function

  • Balanced hormones and regular cycles

  • Enhanced egg and sperm quality

  • Improved chances of healthy conception

  • Stronger immune defenses for pregnancy

  • Confidence and peace of mind while trying to conceive

Discover the Fertility Stack 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 plastic
Functional Medicine expert

60-Day Money-Back Guarantee

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

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.

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
Fertility Stack

Unlock Your Reproductive Potential

Optimize Your Fertility with the Fertility Stack—Healthy Conception, 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

The Fertility Stack takes a comprehensive approach to optimize reproductive wellness and prepare for a healthy pregnancy. Bio-Avail Multi provides a complete prenatal vitamin and mineral formula to nourish reproductive cells and support fetal development. Bio-Avail Organ delivers targeted nutrients from reproductive tissues to balance hormones and promote optimal function. And Bio-Avail Colostrum+ supports immune balance and gut health, which are crucial for a healthy conception and pregnancy.

Yes, the Fertility Stack is designed to support both male and female reproductive health. While some ingredients are specifically targeted towards women (e.g., prenatal vitamins), many of the nutrients and compounds in this stack are equally important for male fertility. Optimal nutrition, hormone balance, and immune function are crucial for reproductive health in both partners.

Ideally, both partners should start taking the Fertility Stack at least 3-6 months before trying to conceive. This allows time for the nutrients to optimize egg and sperm quality, regulate hormone function, and support overall reproductive health. However, even starting one month before conception can provide significant benefits. It's also important to continue taking the stack—after confirming with your healthcare provider that it’s safe and appropriate for you—throughout pregnancy to support fetal development and maternal health.

If you have a pre-existing reproductive health condition (e.g., PCOS, endometriosis, low sperm count), the Fertility Stack can often provide significant benefits by optimizing nutrient status, balancing hormones, and supporting overall reproductive function. However, it's always best to consult your healthcare provider before starting any new supplement regimen, especially if you are undergoing medical treatment for your condition. Your provider can help you determine if the Fertility Stack is right for you and guide you on the best dosage and timing.

We always suggest checking with your healthcare provider before beginning a new supplement routine, and this is especially true for pregnant women. That said, the ingredients in this stack—vitamins, minerals, and phytonutrients in Bio-Avail Multi, organ meats in Bio-Avail Organ, and colostrum, lactoferrin, and beta-glucan in Bio-Avail Colostrum+—have been studied for their benefit in pregnant/lactating populations, and so we have no reason to believe that it is unsafe for these populations to consume them. Bio-Avail Multi provides a complete prenatal vitamin and mineral formula to support fetal development and maternal health. Bio-Avail Colostrum+ helps strengthen immune defenses and maintain a healthy gut microbiome, which is crucial for a healthy pregnancy. Bio-Avail Organ contains heme iron, active B vitamins, and many other nutrients that support a healthy pregnancy.

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