A new study shows that pre-workout supplement labels often dont accurately reflect what the bottles actually contain.

Recently, it occurred to me to ask him, Do you actually know whats in the pink stuff?

Unsurprisingly, this results in a lot of supplementsnot actually containing what those labels claim.

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Meanwhile, 12 percent of the products contained ingredients that have been banned by the FDA.

Manufacturers are promoting [these ingredients] as potentially the next emerging thing, Dr. Cohen says.

The manufacturers are permitted to include a countless number of these kinds of plant-derived ingredients.

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associate professor of medicine at Cambridge Health Alliance and researcher specializing in supplement safety.

Even if theyre accurately labeled, that does not mean theyre safe, and does not mean theyre effective.

That dosage matters because the effectiveness and safety of supplement ingredients are tied to the amount.

Too little, you wont see much effect.

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(One product even contained four different FDA-banned substances.)

So what can you do if youre looking to get a pre-workout boost via a supplement?

Otherwise, you want to double-check your supplements are certified by independent testing bodies, like theUSPorNSFcertifications.

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As for the pink stuff?

It turns out its NSF-certified.

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