Ambiguous intake levels, lax regulations and marketing ploys? Not so, says supplements industry

By Kacey Culliney

- Last updated on GMT

Related tags: Nutrition

Too much of a good thing? Industry slams notion...
Too much of a good thing? Industry slams notion...
Industry has slammed suggestions that vitamins and dietary supplements are ‘too much of a good thing’ with unknown toxicity, ambiguous intake levels, laxer regulations and marketing ploys that lull consumers into a false sense of security.

The global vitamins and dietary supplements (VDS) sector tallied up at €68.6bn for 2011, according to Euromonitor data, and is set to almost be at parity with the over the counter drugs (OTC) segment by 2016 – worth about €81.5bn.

In a Euromonitor blog​, Stephanie Prymas, US-based consumer health analyst, suggested the VDS sector was ‘too much of a good thing’ and referenced research suggesting excessive consumption of VDS may be detrimental to health.

However, Graham Keen, executive director of the Heath Food Manufacturers' Association (HFMA), said the sector, “has an exceptional record of both safety and efficacy, in the UK and worldwide.”

The Council for Responsible Nutrition (CRN) in the UK and US (unaffiliated) both slammed the notions that intake levels are ambiguous and toxicity levels unknown.

Fog, art, science...

Duffy MacKay, vice president for scientific and regulatory affairs at CRN US, told NutraIngredients: “ULs are not ambiguous; when done properly they are science-based.”

Professor David Richardson, the scientific advisor to CRN UK, said there are, “three authoritative scientific risk assessments on all the essential nutrients”.

The European Food Safety Authority (EFSA), the US Institute of Medicine and the UK Expert Group on Vitamins and Minerals have all studied, evaluated and published ULs considering all sources including conventional foods, fortified foods, and supplements, said Richardson.

The World Health Organization, the EC’s Scientific Committee on Food and Codex Committee have also been involved in promulgating and assessing risk levels.

Prymas said that while upper and lower levels had been set, “some research raises discussions on the clarity of these and there are suggestions that there may be some fog.”

“In essence, determination of ULs is currently more art than science,”​ the blog read.

Into the black?

Prymas said that the VDS sector has a “laxer regulatory oversight”​ than over the counter drugs, with no need for pre-market approvals like OTCs in the US and fewer approvals in the EU.

Keen said that the UK is, “one of the toughest regulatory environments in the world”​. There are regulatory and enforcement bodies, including the Food Standards Agency, the Advertising Standard Authority, the Medicine and Healthcare products Regulatory Agency and Trading Standards, overseeing the sector, he said.

Keen noted a fine line between appropriate regulation and over-regulation that can create grey and black markets. “The last thing we want is for consumers to be driven to unregulated or less-regulated sources of supply,” ​he added.

MacKay said that different regulations are appropriate: “VDS regulations are specifically designed to balance consumer access with consumer safety.”

“In general vitamins and minerals have a different safety margin than prescription and OTC drugs,” ​he said.

Professor Richardson suggested that the, “risk of excessive intakes is relatively low for the majority of nutrients”.

The lack of significant numbers of adverse events and reports like those issued last week by EFSA that found there were no over-consumption issues for omega-3s, vitamin D and calcium, confirm Richardson’s position.

Keen pointed to UK data that showed a “significant proportion” ​of the population do not achieve nutritional sufficiency through diet alone. “As such, daily supplements provide important nutritional insurance for millions of users looking to safeguard their nutritional intake.”

‘Industry must act responsible’

Prymas has called on industry to act responsibly in its push of the VDS sector, noting they were sometimes positioned as alternatives to whole foods, something she said could, “lull people into a false sense of security”.

“In terms of business, it makes sense to push supplements but long-term it does need to be tailored to the individual. It’s important to establish a level of credibility and from a consumer education standpoint, industry needs to talk about intake levels,”​ she said.

Industry did engage in consumer education, she said, but shoppers were still often left in the dark about which supplements to purchase – and why.

However, MacKay pointed out that this kind of education does take place, often directly via label claims at the point of purchase.

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2 comments

Wide margin of safety for dietary supplements

Posted by Alan Ruth,

The latest (28th) Annual Report of the American Association of Poison Control Centers reported that there is a ‘wide margin of safety for dietary supplements’. The results are a welcome response to some of the negative press on supplements recently e.g. the Euromonitor blog referred to in Kacey’s article. The Poison Control Centers have kept detailed records and statistics on the reports of poisonings for every kind of substance, which includes dietary supplements. In 2007, the Poison Control Center reported no deaths associated with multiple vitamins, B-vitamins, or from Vitamins A, C, D, or E. It also reported that there were no deaths from any of these vitamin supplements or any other vitamin in 2010. In that the United States is a highly developed market for dietary supplements (according to a recently published study by the Council for Responsible Nutrition (CRN) in the United States, over two-thirds of U.S. adults take dietary supplements), it is I think reasonable to assume that there is also a wide margin of safety for dietary supplements internationally. The 28th Annual Report was featured in an article by Stephen Daniells in nutraingredients.com by on 9 March 2012.

Dr. Alan Ruth, CEO, Irish Health Trade Association

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Strength of evidence cited in blog questioned

Posted by Alan Ruth,

In this article, Kacey Culliney refers to a Euromonitor blog by Stephanie Prymas which suggests that the VDS (vitamins and dietary supplements) sector was ‘too much of a good thing’. Kacey also noted that the blog referenced research suggesting excessive consumption of VDS may be detrimental to health. Kacey also provided your readers with a link to the blog.

In her blog, Stephanie Prymas made very short statements about a total of seven studies. Four of these statements are one sentence long, two are two sentences long, and the longest is three sentences long. The seven statements and the studies they refer to, provide very weak support for her statement, in her blog, regarding growing evidence showing that overdoing it on certain nutrients can be harmful. The findings of two of the studies cited cannot be extrapolated to Europe. The other studies have been criticised by experts because of their methodological limitations and because they cite relative risk figures which do not reflect actual risks. In her blog Stephanie also states that one of the studies was carried out by Dutch researchers. However, the specific study she refers to was from the University of Copenhagen and was based on blood samples from 247,574 Copenhageners!

I have sent a comprehensive response to Stephanie Prymas’s blog to the editor of nutraingredients.com.

Dr. Alan Ruth, CEO, Irish Health Trade Association

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