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Tuesday, April 09, 2024

Opinion: Look out for these three common fallacies the supplement industry uses to market products

Taking extra vitamin C doesn't prevent the flu.
(Photo by P. Gauthier, Unsplash)
Eating your fruits and veggies is an excellent way to get the nutrients a body needs, but so are dietary supplements; at least, that's what industry marketers want Americans to believe.

"According to a 2023 survey, 74% of U.S. adults take vitamins, prebiotics and the like," writes Katie Suleta in her opinion for The Conversation, a journalistic platform for academics. "It's important to consider why so many believe supplements can help them lead healthier lives. While there are many reasons, how supplements are marketed is undeniably an important one. In my years following the industry, I've found that three mistaken assumptions appear repeatedly in supplement marketing."

First off, there is the "appeal to nature fallacy." Marketers treat vitamins and supplements as "nature made" and, therefore, will make or keep you healthy. Suleta explains, "If I say 'vitamin C, what do you immediately think of? Probably oranges or citrus in general and flu prevention. But if I say 'the flu shot,' what immediately comes to mind? Probably doctor's offices, a little bit of pain and pharmaceutical companies. One of these is clinically proven to prevent flu infections and lessen the severity of illness. The other has been marketed as though it does those same things, but there's no clinical evidence to support this."

The second assumption supplement companies use is the idea that more equals better. "If a little vitamin C is good for us, then a lot of it must be great," Suleta writes. "The truth is that our bodies tightly regulate levels of the vitamins and minerals we consume. If you don't have a deficiency, consuming more of a particular vitamin or mineral through a supplement won't necessarily lead to health benefits."

The third concept nutritional supplement companies use to boost sales is the action bias. Suleta explains, "Taking action makes people feel like they have more control of a situation, which is especially powerful when it comes to health. 'Even if I don't need the extra vitamin C,' they might think, 'I'll take it just to be sure. What's the harm?'. . . It is possible to have too much of a good thing. Too much vitamin C can lead to diarrhea, nausea, stomach cramps and more. . . . Too much vitamin D can lead to conditions including nausea, vomiting and kidney stones."

Suleta recommends taking a guarded approach to what supplements promise and speak to your medical provider before starting on any new nutritional regimen.

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