fb61bd32_Taking_Nutritional_Supplements__Reasons_for_Caution
[Clinical Problem] Vascular Disease: Stroke, TIA or Coronary Disease [Potentially Harmful Nutrient] Calcium > 1000 mg/day [Reasons for Caution] 
High dose supplements have been linked to an increase in the risk of vascular events in elderly women. A daily calcium dose of 500 mg and vitamin D 10 ug with healthy diet and exercise may be better.
Minor Contraindications to Taking Nutritional Supplements
Reasons for Caution