Calcium
Most abundant mineral in the body, essential for bones, teeth, muscle contraction, clotting and nerve transmission.
What is it for?
💡 Absorption: Calcium citrate is better absorbed. Do not take more than 500mg per dose. Separate from iron and zinc by 2h.
⚠️ Caution: UL: 2500mg/day. Excess linked to kidney stones. Always combine with D3 and K2.
Interactions with other supplements
D3 increases intestinal calcium absorption by 30-40%. Essential combination for bones.
⚕️ Medication interactions
Calcium interferes with bisphosphonate absorption, drastically reducing their efficacy.
→ No tomar juntos. Separar al menos 2 horas. El bifosfonato debe tomarse en ayunas con agua sola.
Calcium interferes with levothyroxine absorption.
→ Separar la toma al menos 4 horas.
🏥 Contraindications
Calcio adicional puede agravar la hipercalcemia.
→ No suplementar sin análisis previo.
El exceso de calcio puede favorecer la formación de cálculos de oxalato cálcico.
→ Preferir calcio de la dieta. Si suplementa, tomar con comida y no superar 500mg/día.
📚 Scientific references (4)▼
Ficha tecnica oficial del NIH. RDA: 1000-1200mg/dia adultos. UL: 2500mg. Esencial para huesos.
Meta-analisis. Suplementacion combinada mejoro significativamente densidad mineral osea en columna, cadera y cuello femoral.
Meta-analisis JAMA. Calcio+D3 reduce riesgo de fractura 6% (total) y 16% (cadera) en postmenopausicas.
Meta-analisis NOF. Calcio+D3 reduce riesgo de fractura total 15% y fractura de cadera 30%.
Want to know if Calcium is right for you?
Take our personalized test and discover the ideal supplement combination.
Take the testProduct comparator (5)
Sorted by cost per dose, from cheapest to most expensive
Nutravita 
Natural Elements 
HIVITAL 
Vitamaze
Natural Elements
💊 Combined products with Calcium
Products that combine Calcium with other supplements
Suplr may receive a commission for purchases made through the links on this page. This does not affect the price you pay or our recommendations, which are based exclusively on scientific evidence.