Last update
4/17/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
USERS' SCORE
Good
Based on 4 Reviews
8.1
Supplement Facts
Serving Size: 2 Tablets
Amount Per Serving
%DV
Calcium (elemental) (from 2,775 mg complex of Calcium Carbonate, Calcium Citrate, Calcium Ascorbate)
1 g (1,000 mg)
77%
Magnesium (elemental) (from 928 mg complex of Magnesium Oxide, Magnesium Citrate, Magnesium Ascorbate)
500 mg
119%
Top Medical Research Studies
9
We investigated how persistent hypercalcemia—elevated calcium levels—affects hemoglobin levels in kidney transplant recipients (KTRs). Through a retrospective study including 385 patients, we analyzed the trajectories of hemoglobin in those with and without hypercalcemia.
Our findings revealed a surprising link: KTRs with persistent hypercalcemia exhibited higher hemoglobin levels over time—an increase of about 0.76 g/dL per year. This was especially pronounced in men, who showed an increase of 0.80 g/dL per year, compared to a more modest rise of 0.36 g/dL per year in women.
Additionally, our data indicated that these patients had a greater risk of developing post-transplant erythrocytosis, a condition characterized by an elevated red blood cell count. This relationship invites further consideration about the role of calcium levels in blood health, suggesting that rather than causing anemia as might be expected, hypercalcemia may drive erythrocytosis in this unique patient population.
Overall, this study emphasizes the complexity of calcium’s role in post-transplant health and highlights the importance of monitoring hemoglobin levels in KTRs, especially those with persistent hypercalcemia.
Our findings revealed a surprising link: KTRs with persistent hypercalcemia exhibited higher hemoglobin levels over time—an increase of about 0.76 g/dL per year. This was especially pronounced in men, who showed an increase of 0.80 g/dL per year, compared to a more modest rise of 0.36 g/dL per year in women.
Additionally, our data indicated that these patients had a greater risk of developing post-transplant erythrocytosis, a condition characterized by an elevated red blood cell count. This relationship invites further consideration about the role of calcium levels in blood health, suggesting that rather than causing anemia as might be expected, hypercalcemia may drive erythrocytosis in this unique patient population.
Overall, this study emphasizes the complexity of calcium’s role in post-transplant health and highlights the importance of monitoring hemoglobin levels in KTRs, especially those with persistent hypercalcemia.
Read More
Most Useful Reviews
9
Tremors stopped
After experiencing eye tremors alongside anemia, I noticed that my eye tremors ceased after taking this supplement.
Read More
8
Condition improved
I took it when symptoms of anemia appeared and completed the course; my condition improved. I love this brand and would recommend it.
Read More
6
Good for anemia
I trust Now Foods for their quality products. The magnesium dosage of 500 mg exceeds a prophylactic dose, which is beneficial for anemia. While the calcium dosage is slightly below the recommended amount, calcium primarily comes from food, making it not detrimental to health.
Read More
Medical Researches
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
- All Researches
9
We investigated how persistent hypercalcemia—elevated calcium levels—affects hemoglobin levels in kidney transplant recipients (KTRs). Through a retrospective study including 385 patients, we analyzed the trajectories of hemoglobin in those with and without hypercalcemia.
Our findings revealed a surprising link: KTRs with persistent hypercalcemia exhibited higher hemoglobin levels over time—an increase of about 0.76 g/dL per year. This was especially pronounced in men, who showed an increase of 0.80 g/dL per year, compared to a more modest rise of 0.36 g/dL per year in women.
Additionally, our data indicated that these patients had a greater risk of developing post-transplant erythrocytosis, a condition characterized by an elevated red blood cell count. This relationship invites further consideration about the role of calcium levels in blood health, suggesting that rather than causing anemia as might be expected, hypercalcemia may drive erythrocytosis in this unique patient population.
Overall, this study emphasizes the complexity of calcium’s role in post-transplant health and highlights the importance of monitoring hemoglobin levels in KTRs, especially those with persistent hypercalcemia.
Our findings revealed a surprising link: KTRs with persistent hypercalcemia exhibited higher hemoglobin levels over time—an increase of about 0.76 g/dL per year. This was especially pronounced in men, who showed an increase of 0.80 g/dL per year, compared to a more modest rise of 0.36 g/dL per year in women.
Additionally, our data indicated that these patients had a greater risk of developing post-transplant erythrocytosis, a condition characterized by an elevated red blood cell count. This relationship invites further consideration about the role of calcium levels in blood health, suggesting that rather than causing anemia as might be expected, hypercalcemia may drive erythrocytosis in this unique patient population.
Overall, this study emphasizes the complexity of calcium’s role in post-transplant health and highlights the importance of monitoring hemoglobin levels in KTRs, especially those with persistent hypercalcemia.
Read More
User Reviews
USERS' SCORE
Good
Based on 4 Reviews
8.1
- All Reviews
- Positive Reviews
- Negative Reviews
9
Tremors stopped
After experiencing eye tremors alongside anemia, I noticed that my eye tremors ceased after taking this supplement.
Read More
8
Condition improved
I took it when symptoms of anemia appeared and completed the course; my condition improved. I love this brand and would recommend it.
Read More
6
Good for anemia
I trust Now Foods for their quality products. The magnesium dosage of 500 mg exceeds a prophylactic dose, which is beneficial for anemia. While the calcium dosage is slightly below the recommended amount, calcium primarily comes from food, making it not detrimental to health.
Read More
5
Hope for improvement
I purchased it to combat fatigue and anemia. The pills are rather large, which is somewhat burdensome, but I bought them primarily to supplement calcium. I hope it helps improve my fatigue and anemia with consistent use.
Read More
Frequently Asked Questions
8
Condition improved
I took it when symptoms of anemia appeared and completed the course; my condition improved. I love this brand and would recommend it.
9
Tremors stopped
After experiencing eye tremors alongside anemia, I noticed that my eye tremors ceased after taking this supplement.
5
Hope for improvement
I purchased it to combat fatigue and anemia. The pills are rather large, which is somewhat burdensome, but I bought them primarily to supplement calcium. I hope it helps improve my fatigue and anemia with consistent use.
6
Good for anemia
I trust Now Foods for their quality products. The magnesium dosage of 500 mg exceeds a prophylactic dose, which is beneficial for anemia. While the calcium dosage is slightly below the recommended amount, calcium primarily comes from food, making it not detrimental to health.
References
- Cojuc-Konigsberg G, Gindl-Bracho A, Linares-Pérez CE, Albarrán-Muñoz S, Reul-Linares E, et al. Effect of persistent hypercalcemia on hemoglobin levels after kidney transplantation. Clin Nephrol. 2025. 10.5414/CN111553
Data last updated:
