Most individuals requires not more than 500 mg of supplemental calcium to meet their daily needs, if not met by diet alone. Achieving the recommended intakes of Vitamin D (600 IU/day for adults up to age 70 and 800 IU/d for those aged 70 or older) also is essential. Based on the totality of evidence for both calcium and vitamin D, more is not better.( total calcium consumption less than the tolerable upper level of intake (2000–2500 mg daily) should be considered safe from a cardiovascular standpoint.
The National Osteoporosis Foundation & Preventive Cardiology have determined that calcium in food or supplements doesn't have an effect on incident cardiovascular or cerebrovascular disease, disease-related mortality, or all-cause mortality in most healthy adults. What do you think about the effect of calcium and Vitamin-D intake on cardiovascular diseases?