








If your DEXA scan shows low bone density or your diet is light on dairy and calcium-rich greens, this plant-based calcium is a practical way to fill the gap. It suits adults tracking Vitamin D, 25-Hydroxy who sit in the lower part of the normal range and want maintenance, not high-dose repletion. It also fits post-menopausal women, smaller-framed adults, and vegans who avoid fish bones and dairy. If you already take high-calcium antacids or get ample calcium from food, you may not need this much.
This formula uses algae calcium from Lithothamnion, a mineral-rich red marine algae that brings calcium with natural magnesium and trace minerals. Vitamin D3 (the form your skin makes from sun) increases calcium absorption from the gut. Vitamin K2 as MK-7 activates osteocalcin (the protein that locks calcium into bone) and matrix Gla protein (a protein that helps keep calcium out of arteries). Compared with rock calcium like carbonate, algae-derived calcium is often gentler on digestion while achieving comparable calcium delivery.
Take three tablets daily with food, ideally split across meals for steadier absorption. Many people do two with breakfast and one with dinner. Separate from iron, zinc, or a multivitamin with iron by at least two hours. Do not take within four hours of levothyroxine or within two hours of tetracycline or quinolone antibiotics. The included 1,000 IU of D3 is a maintenance dose; if your Vitamin D, 25-Hydroxy is low, replete with higher D3 temporarily under clinician guidance.
Skip this or get personalized guidance if you have a history of high calcium, recurrent kidney stones, sarcoidosis, or chronic kidney disease. If you use a thiazide diuretic (chlorthalidone, hydrochlorothiazide), extra calcium can push levels higher; monitor serum Calcium and PTH (parathyroid hormone, the signal that pulls calcium from bone). On warfarin, avoid added vitamin K; discuss alternatives. Strontium in this blend can artifactually raise DEXA readings, so tell your imaging center or pause it before a scan.
Calcium effects on bone markers show in 8–12 weeks, while measurable DEXA changes take 12–24 months. Consistency, adequate protein, and resistance training matter as much as the supplement.
They deliver similar elemental calcium. Algae calcium comes with natural magnesium and trace minerals and is often easier on digestion. Clinical outcomes depend more on total calcium, vitamin D status, and adherence.
No. Calcium binds both and reduces absorption. Take levothyroxine at least 4 hours apart, and iron or iron-containing multis at least 2 hours apart from calcium.
Yes. Vitamin K (K1 and K2) opposes warfarin’s effect. If you take warfarin, do not add vitamin K without your prescriber’s guidance. Direct oral anticoagulants are not vitamin K–dependent.
The included 1,000 IU D3 is a maintenance dose. For established deficiency, clinicians usually replete with higher D3 short term, then step down to maintenance like this once levels recover.
It can. Taking doses with meals, splitting across the day, and staying hydrated reduce this. Algae-derived calcium is often better tolerated than some rock-based forms.
Yes. Strontium can make DEXA results look higher than true bone density. Tell your imaging center or pause use several weeks before a scan, per your clinician’s advice.



