Bio-Avail Mag

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Magnesium is an essential mineral for human health, involved in over 700 enzymatic reactions, and required to synthesize DNA, RNA, and proteins—the building blocks of life. It promotes sleep and relaxation, helps maintain normal blood sugar, supports bone health, and much more.

Bio-Avail Mag highlights:

Promotes sleep and relaxation, helps maintain normal blood sugar, supports bone health, and much more

Contains 300 mg of magnesium—to close the gap between the average intake in the United States and the amount we need for optimal function

Contains buffered magnesium chelate, a highly bioavailable form that gets absorbed quickly and is easy for the body to use

Is far less likely to cause the unfavorable gastrointestinal (GI) symptoms (like loose stools and bloating) associated with inferior forms of magnesium


The Missing Link for Energy, Relaxation, Bone Health, and More

What makes Bio-Avail Mag stand out?

Why optimize your magnesium levels with Bio-Avail Mag?

Magnesium is an important nutrient for converting carbohydrates and fat into energy and maintaining healthy blood sugar levels. Magnesium may also support the proper functioning of insulin receptors on cells.

Magnesium helps the muscles relax, which can promote relaxation and a sense of calm and support restful and restorative sleep.

Magnesium supports enzymes that improve the function of blood vessels and the heart.

Magnesium works together with calcium and vitamin D to maintain strong and healthy bones as we age.

Individuals with compromised digestion are more likely to lack adequate magnesium. Buffered Magnesium Chelate can restore healthy magnesium balance and improve bowel regularity and function.


Bio-Avail Mag is best taken with food. We recommend taking the daily two-capsule serving with dinner to promote optimal sleep and relaxation and healthy elimination the following day.

Many magnesium supplements on the market contain magnesium oxide or magnesium citrate. These forms of magnesium are not as well-absorbed as the Buffered Magnesium Chelates that we use in Bio-Avail Mag, which bypass typical routes of absorption and are thus less likely to cause the unpleasant gastrointestinal effects associated with less bioavailable forms of magnesium.

Customer Reviews

Based on 18 reviews
Can’t Do Without It

The Bio-Avail Mag is a must have in my supplement regimen. I’ve been sleeping better as it helps relax my body and calm my mind. I’ve also noticed my PMS symptoms have significantly reduced. My husband takes it to keep his blood pressure from rising too much. Plus, most of us are deficient in magnesium anyway. And I love that it comes in a dark glass bottle instead of plastic!

Tesa Brown
Bowel problems

Something in this mixture is causing constipation. Dropped down to 3 a day helped but didn’t eliminate the problem.

Hi Tesa, Thank you for writing in. We are sorry to hear about the sensitivity to the Bio-Avail Mag. This can sometimes happen when adding magnesium into your daily routine. Stopping the supplements for a couple of days or until the symptom subsides is what we suggest. Once that has happened, try adding them back in, but at half of the recommended dose. Please let us know if there are any improvements after following this recommendation. We appreciate you taking the time to leave us a review!

Sylvia Nagy
High Quality and Well Researched Products

I have been reading Chris Kresser's material for several years now and I believe he is one of the most reputable, practical and science backed practitioners out there. When I found out that he started Adapt Naturals, I was very excited. As predicted, the supplements are high quality, carefully crafted and properly formulated. I highly recommend these products.

Hi Sylvia, Thank you for trusting our brand, Adapt Naturals was created with high quality products that provides optimal health. We are glad you found us and our supplement is working for you. Thank you for reviewing the Bio-Avail Mag!

alyson osters

Bio-Avail Mag

Hi Alyson, It's great to hear you are loving the Bio-Avail Mag. We appreciate you taking the time out to review this product!

Chad McKown
Top Quality Brand

Loving the entire line of Adapt Naturals

Hi Chad, It's an honour for us to know you are loving and enjoying the entire Adapt Naturals line. We appreciate your review!