Food vs. Supplements

Last week, the health headlines blared that nutrients from foods were better than nutrients from supplements—specifically that excess calcium from supplements was associated with an increased risk of dying from cancer. That will get your attention if you take supplemental calcium, especially if you’re taking calcium because your physician told you to take it because you have osteopenia or osteoporosis. Let’s take a closer look at this study published in the Annals of Internal Medicine.

Researchers examined data collected for the National Health and Nutrition Examination Survey (NHANES) on food intake and supplement use. NHANES data are now collected every two years, so they selected six consecutive cycles and tracked the all-cause mortality from subjects in those data. They found that in over 30,000 adults over 20 years of age tracked for six years, there were 3,613 deaths with 805 from cancer.

The researchers then examined the food intake and supplement use of the subjects from the prior 30 days of data collection with mortality data. That’s where they discovered that in the subjects who died from cancer, there was a 62% greater risk if they took more than 1,000 mg of supplemental calcium per day. The overall conclusion was that nutrients from foods are better than nutrients from supplements; in addition, some supplements may be hazardous.

Should you start chucking out your calcium supplements? We’ll take a closer look at this study the rest of this week.

What are you prepared to do today?

        Dr. Chet

Reference: Ann Intern Med. doi:10.7326/M18-2478.