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Phytocal - Multimineral (Blood Type O)

11 Customer Reviews Write a Review

Personalized multimineral supplement with highly bioavailable seaweed calcium and additional absorptive support to help strengthen bones and digestion of Blood Type Os.

Select your blood type: O A B AB

Seaweed-based calcium, personalized for you.

The way your body assimilates food, medicines and dietary supplements is unique and dependent on your blood type. Each blood type also has different cofactor and trace mineral needs.

Phytocal O, developed by Dr. Peter D'Adamo, is a personalized multimineral supplement with highly bioavailable seaweed calcium and additional absorptive support to help strengthen bones and digestion of Blood Type Os.

The unique ingredient in Phytocal O is maerl-based sea calcium, the only natural source of calcium with a broad enough buffering range to work effectively with the different digestive capabilities of each blood type. It comes from the rare maerl seaweed, found only in isolated areas off the coast of southwest Ireland.

Personalized multimineral Phytocal O supports overall health in a multitude of ways:

  • Provides absorptive support to help strengthen bones and digestion of Blood Type Os
  • Supports healthy joint and ligament function
  • Supplies trace amounts of essential nutrients such as magnesium, boron and zinc to support bone strength and immunity

Phytocal O contains unique synergistic ingredients to further enhance healthy performance and benefits of maerl-based sea calcium.

Phytocal O's key ingredient's include:

Vitamin D
Helps facilitate proper calcium absorption and assimilation. Vitamin D is essential for multiple body functions including immune support, hormone production, skin health, muscle health and brain function.

Contains the necessary cofactors for proper absorption and is easy to assimilate. Maerl sea calcium is a mineral essential to building and maintaining strong bones, as well as supporting heart, muscle and nerve function.

Helps to ensure healthy joint, connective tissue and ligament function.

Click the Play button to hear to Dr. Peter J. D'Adamo discuss Phytocal.

Take the right supplement for your specific mineral needs. Phytocal O contains unique co-factors that synergize with maerl calcium to take full advantage of the strength of the Type O digestive tract.

Dosage & Information

For maximum benefit: take two (2) capsules two to three times daily with meals
(As a dietary supplement or as directed by a physician)

120 vegetarian capsules
Is this Product Vegetarian? Yes
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose call a doctor or poison control center immediately.

Does not contain: sugar, salt, gluten, wheat, yeast, corn, milk or egg products, preservatives, color, flavors or artificial ingredients

For California Residents

Prop 65 Warning

WARNING: Consuming this product can expose you to Lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to


Recommended Reading

A New Discovery: A Superior Calcium Steve D. - Blood Type Diet Success Story How to Work Out Right 4 Your Type
Write a Review
  • Works great with my body

    Posted by Anonymous on Jan 23rd, 2019

    Great product, I can feel the benefits

  • Happy

    Posted by GUY V BURTON on Aug 31st, 2018

    These products are a total Godsend! The quality and genius behind them, stands alone. I am so grateful. Thank you.

  • 52 and feeling like a Kid

    Posted by Maggie on Jun 29th, 2018

    I can feel the difference with the mineral supplement. I am grateful of Dr. D'Adamo's work has now included supplementation. I strayed from his knowledge and got very sick, with hyperthyroidism, but now am recovering! Off of 80% of the medicine and getting back to status quo. Doctor thank you does not cover my appreciation! Grateful. Thank you for the real advice and your commitment to your research.

  • happy with the better calcium

    Posted by Anonymous on Jul 8th, 2017

    I was ready to order these right away because of the better absorbing calcium from seaweed. My whole family suffers from bad calcium deposits, so I'm so thankful to find this product. These capsules are bigger than the Polyvite, but I take 2 at a time & the powder residue is similar tasting to sunflower seeds, according to my teenager :-)

  • No Side Effect!

    Posted by Renee Zander on Mar 30th, 2017

    Back in the day my OB/GYN prescribed 50,000 mg of Calcium for me per day in one pill.. It made me feel sick and weird. I couldn't take them over a week. I stopped taking them for over a year. I started on the Phytocal 3-6-2016. I take 1 capsule per daily with my other Blood Type O supplements. No issues with this product. I passed my physical with flying colors. Thanks Dr. D'Adamo

  • no constipation

    Posted by Anonymous on Dec 29th, 2016

    I had tried every OTC calcium supplement with severe constipation. This supplement does not!!

  • Great produce

    Posted by Anonymous on Jul 11th, 2015

    I am feeling much better while using this product. I have a hard time taking products due to the binders and non organic products containing chemicals that I react to. It is nice to find products that add to my diet and help my body to heal and function better

  • great product

    Posted by Paul on May 26th, 2015

    I credit a lot of my muscular/pelvic pain relief and improvement with this unique product. Thank you!

  • I noticed a difference within 24 hours!

    Posted by Kerrie L. Crompton on Mar 6th, 2015

    I have not slept this well in quite a while! Thank you for an exceptional product!

  • Best Smelling Mineral Supplement for this Hunter

    Posted by Linda on Dec 15th, 2014

    Yes, that's right, I said the best "smelling" supplement for me. This is because many years ago I read a book by Dr. Lendon Smith who suggested that smelling a vitamin/mineral/herb before one swallows it, will let the individual know if that supplement is right for them at that moment. So if the opened bottle smells sweet or neutral, then your body is telling you that you need it today. I have been using this as a standard for myself when taking my vitamins/herbs; and have had no bad after effects if I follow this. I have found that "Phytocal" always smells sweet and good to me; compared to other mineral supplements I have purchased/tried in the past. Another plus in trust to the work Dr. DAdamo and his staff are doing for the benefit of many.


    Posted by Elaine Platzer on Dec 8th, 2014

    Recently my health insurance required me to submit blood samples for lab testing. All the results came back good. I give Phytocal some of the credit for my being able to remain on the difficult path of being a BTO vegetarian.

Practitioner Technical Information

Must login as a practitioner to have access.

Phytocal O TRM

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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