"There are more than 100,000 supplements on the US market capsules, powders, tablets and gummies sold to improve or maintain health. Supplements can contain vitamins, minerals, botanicals and amino acids on their own or in various combinations. The consumption of these products is surging. But it's a common misunderstanding that these products are entirely safe, says Dr Pieter Cohen, an internist and associate professor at Harvard Medical School."
"For some nutrients, there's a recommended dietary allowance (RDA) an amount to aim for daily, set in the US by the Food and Nutrition Board of the National Academies of Sciences, Engineering, and Medicine. The RDA can vary by sex, age and medical status. There's also a tolerable upper intake level (UL), which is the maximum safe daily limit. Consuming more than the UL can cause health problems, depending on the nutrient."
More than 100,000 supplements are available in capsules, powders, tablets and gummies containing vitamins, minerals, botanicals and amino acids in many combinations. Consumption of these products is surging, yet many assume they are entirely safe despite risks from excessive nutrient intake. Recommended dietary allowances (RDAs) guide daily targets and tolerable upper intake levels (ULs) set maximum safe limits that vary by sex, age and medical status. Nutrient needs ideally come from food, but supplements may be necessary due to limited access to nutritious foods or medication effects. Consumers face dizzying product variety and inconsistent labeling, so choosing high-quality products and appropriate dosages is critical.
Read at www.theguardian.com
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