AlgaeCal Plus

Yes. All prescription bone medications require adequate calcium to give your body the raw materials it needs to build new bone. And AlgaeCal Plus provides a clinically supported, plant-based calcium that works beautifully alongside these treatments.

That said, it’s always important to check with your healthcare provider before making any changes to your supplement routine or medical care, especially if you’re currently taking prescription medications.

Many doctors, especially those open to natural treatments, are already familiar with AlgaeCal. But every healthcare provider is different, and it’s always best to give them the full details yourself.

To make it easy, we’ve created a “Take It to Your Doctor” information sheet that outlines the clinical research, ingredients, and dosing. Print it out or share it at your next appointment so your doctor can give you the best, personalized guidance for your bone health.

Yes. AlgaeCal Plus contains absolutely no shellfish or shellfish-derived ingredients.

And many customers with shellfish allergies take AlgaeCal Plus safely with no adverse reactions. That said, if you have a severe allergy, it’s always best to consult your doctor or allergist before starting any new supplement.

Yes. But timing matters. To avoid any potential interactions and to ensure the best absorption of both your supplements and medications, it’s best to take AlgaeCal Plus at least 2–3 hours apart from prescription drugs. Some medications may require a 3–4 hour separation, so always check with your doctor or pharmacist for your specific situation.

Special note for blood thinners:

If you are taking an older anticoagulant (such as warfarin or Coumadin), vitamin K2 is not recommended because these drugs use the same absorption pathway and can block each other. Newer anticoagulants—called Factor Xa inhibitors (e.g., apixaban, rivaroxaban) and Direct Thrombin inhibitors (e.g., dabigatran)—do not interfere with vitamin K2 and may be safer for your bones. Ask your doctor if one of these newer options is appropriate for you.

As always, consult your healthcare provider before adding any supplement or making changes to your medication routine.

AlgaeCal Plus contains only a tiny amount of naturally occurring iodine. This is well within the normal range found in many everyday foods. For example three medium-sized potatoes will contain roughly 180 mcg.

However, if you have a thyroid condition, it’s always wise to check with your doctor to confirm that this amount is appropriate for your individual needs.

For best absorption and to avoid any interaction with thyroid medications, take AlgaeCal Plus at least 4 hours apart from your thyroid prescription.

The U.S. Food and Drug Administration (FDA) does not “approve” dietary supplements. It only approves prescription medications. Because AlgaeCal Plus is a natural supplement, it isn’t eligible for FDA approval.

However, AlgaeCal is registered with the FDA and holds GRAS status (Generally Recognized as Safe). GRAS means a qualified panel of independent experts has reviewed the science and determined the ingredient is safe for its intended use.