Calcium may lower chances of colorectal cancer
Harvard School of Public Health researchers analyzed 20 studies covering 1,415,596 people, measuring calcium in the diet, and comparing these levels to instances of colorectal cancer. Overall, doctors found that each increase in calcium of 300 mg per day lowered the chances of colorectal cancer by 8 percent. For those consuming an average of 1,000 mg of calcium per day, compared to those who consumed 250 mg, chances of colorectal cancer were 18 percent lower. And people consuming an average of 1,750 mg of calcium per day were 26 percent less likely to develop colorectal cancer compared to those who got 250 mg of calcium per day.

Reference: Int J Cancer. 2014 Oct 15;135(8):1940-8.
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