Воскресенье, 21 Апреля, 2019

Nutrients from food, not supplements, linked to lower risks of death, cancer

Calcium supplements linked to cancer in major study Spending Much On Dietary Supplements? They're Not The Secret To Living Longer, Says New Study
Samantha Long | 13 Апреля, 2019, 00:28

The study, which was published on April 9 in Annals of Internal Medicine, used data from the National Health and Nutrition Examination survey from 1999 to 2010, which was linked to mortality data from the National Death Index.

To obtain the results, the researchers looked a data of almost 30,000 adults in the US with a minimum age of 20 years.

But this finding only applied to nutrients in food, not supplements.

With more than half of USA adults using dietary supplements, Zhang and her colleagues explored their effects, as well as the impact of nutrients found in foods, with data from 27,725 adults participating in the National Health and Nutrition Examination Survey.

The researchers assessed whether adequate or excess nutrient intake was associated with death and whether intake from food versus supplement sources had any effect on the associations.

"As potential benefits and harms of supplement use continue to be studied, some studies have found associations between excess nutrient intake and adverse outcomes, including increased risk of certain cancers", said Fang Fang Zhang, corresponding author on the study. One last advice, focus on taking as a supplement only the calcium or the minerals that are missing from your diet.

When the team accounted for the nutrient source, they discovered that the reduced risk for death and death from cardiovascular diseases were only associated with nutrient intake from food, not supplements.

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Debate as to their effectiveness has raged for years with many studies showing a supplement does not mirror the effects of when taken naturally.

A new Tufts University study involving more than 27,000 Americans is the latest research to show that most supplements may not do much to improve health - or at least can't compete with the benefits of a healthy diet.

Moreover, during those six years of study, 3,613 participants had died. That quantity included 945 cardiovascular deaths and 805 most cancers deaths. As well as, throughout a family interview, they answered whether or not they had used any dietary supplements within the earlier 30 days. The same was not true for calcium intake from foods.

Researchers also found that taking dietary supplements did not affect the risk of death of individuals with low nutrient intake. In addition, people who consume adequate levels of vitamin A, vitamin K, zinc or copper had a lower risk of death from heart disease, compared with those who didn't get adequate levels of these nutrients.

They found no evidence of an association between calcium in food and cancer death.

In individuals who had low levels of nutrient intake, dietary supplements did not affect their mortality risk. In 2011, a large study found that use of vitamin E supplements was linked to an increased risk of prostate cancer in men.

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