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Old 02-09-2018, 12:40 PM
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Default JAMA medical journal questions most dietary supplementation

JAMA takes on the dietary supplement industry. The unregulated $30 billion industry is likely not pleased with their conclusions. - D

Quote:
"Most randomized clinical trials of vitamin and mineral supplements have not demonstrated clear benefits for primary or secondary prevention of chronic diseases not related to nutritional deficiency. Indeed, some trials suggest that micronutrient supplementation in amounts that exceed the recommended dietary allowance (RDA) ... may have harmful effects."
Vitamin and Mineral Supplements
What Clinicians Need to Know

JoAnn E. Manson, MD, DrPH1,2; Shari S. Bassuk, ScD1
Author Affiliations Article Information
JAMA. Published online February 5, 2018. doi:10.1001/jama.2017.21012

FULL ARTICLE
https://jamanetwork.com/journals/jam...rticle/2672264

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Old 02-09-2018, 12:48 PM
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The above article follows JAMA's 2016 article warning that "the evidence of harm has continued to accumulate" with the use of dietary supplements.

Editorial
October 11, 2016

The Supplement Paradox
Negligible Benefits, Robust Consumption


Pieter A. Cohen, MD1,2
Author Affiliations
JAMA. 2016;316(14):1453-1454. doi:10.1001/jama.2016.14252

Dietary supplements encompass a wide variety of products from vitamins, minerals, and botanicals to probiotics, protein powders, and fish oils. During the past 2 decades, a steady stream of high-quality studies evaluating dietary supplements has yielded predominantly disappointing results about potential health benefits, whereas evidence of harm has continued to accumulate. How consumers have responded to these scientific developments is not known. In this issue of JAMA, the report by Kantor and colleagues sheds light on this important question.

Article (first page free)
https://jamanetwork.com/journals/jam...&redirect=true
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Old 02-09-2018, 12:57 PM
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More from the Today Show.

https://www.today.com/health/vitamin...rs-say-t122663
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