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Planet Money

Why is there a supplement craze if they don’t even work?

05 Jun 2026

Transcription

Transcript generated automatically by AI and may contain errors.

Chapter 1: What is the main topic discussed in this episode?

0.031 - 19.337 Unknown

This week on the NPR Politics Podcast, catch up on the week's big primary election news, how things played out with newly drawn districts in California, and an increasingly competitive Senate race in Iowa. Plus, we unpack the latest redistricting news that may benefit Republicans in the fall. Listen every afternoon to the NPR Politics Podcast.

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19.858 - 27.388 Unknown

Find us on the NPR app or wherever you get your podcasts. This is Planet Money from NPR.

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30.254 - 39.828 Jane Black

You may have noticed we're living in the midst of a supplement craze. People are Vitamaxing, biohacking so they can live longer. Everyone's talking about gut health.

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40.208 - 54.398 Sarah Gonzalez

I feel very aware of my gut health right now. It's true. The supplement industry is a $70 billion industry in the United States and growing fast. We are talking... Protein powders, pre-workouts, probiotics, fat burners.

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54.418 - 58.534 Jane Black

There's joint health, gut health. There's glowing skin. I love glowing skin.

58.554 - 60.582 Sarah Gonzalez

Better sleep, stronger nails, all of that.

60.629 - 63.592 Jane Black

75% of Americans take supplements. A lot of people.

63.892 - 87.171 Sarah Gonzalez

Like 100,000 different options you can choose from. Now, supplements are everything from creatine or bovine colostrum, sometimes put in a martini, to your daily vitamin C gummies or echinacea. And because there are so many supplements out there, we kind of wanted to see, like, how easy it is to get a new supplement pill or gummy on the market. Like, could we make a supplement?

87.512 - 90.214 Sarah Gonzalez

Okay, what if we want to make a supplement?

Chapter 2: What is driving the supplement craze in America?

104.536 - 108.401 Frank Cantone

Capsules, tablets, powders, soft gels, gummies.

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108.761 - 114.49 Jane Black

And then brands or influencers or podcasts sell them under their own labels.

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114.81 - 119.957 Sarah Gonzalez

I think it would be cool to have like a little microphone-shaped gummy or a little planet or a little money gummy.

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120.518 - 121.561 Sarah Gonzalez

A money gummy?

121.721 - 122.403 Frank Cantone

We could do those.

122.704 - 130.105 Sarah Gonzalez

Or maybe we do a powder that you just like add water to and down it real quick. And it's called the money shot. The money shot is the perfect name.

130.286 - 133.836 Frank Cantone

First and foremost, I think what's important would be to define the market.

133.951 - 144.441 Sarah Gonzalez

Frank really wanted us to think about our Planet Money audience and what supplement you find people might want. You know, smart, busy, capable people.

Chapter 3: How has the supplement industry grown in recent years?

237.353 - 242.199 Frank Cantone

No one does just kiwi. Oh, it's not good on its own. They do strawberry kiwi.

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242.219 - 256.399 Sarah Gonzalez

We talked colors. Ours would be green, of course. And right there on the spot, we got an estimate. For the smallest possible order of our fully customized, I would argue very tasty, supplement.

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256.497 - 264.669 Frank Cantone

It's going to be around 8,333 bottles. Based upon the ingredients we're talking about, it's going to range from like $4.50 to $7.

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264.709 - 272.26 Sarah Gonzalez

$4 times 8,300-ish bottles to $33,000, and then you do half up front.

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272.28 - 276.847 Jane Black

Which is not that bad if you're looking to start your own business, but there is a cheaper option, too.

277.268 - 282.235 Frank Cantone

For our stock formulas, you're in the game for, you know, $5,500.

282.535 - 308.779 Sarah Gonzalez

Yeah, they do have more than 800 gummies and pills and powders ready to go already. These are their stock options that we can just slap our own Planet Money label on and call it our special Planet Money energy supplement, even though this exact same gummy, same color, same flavor, same shape is being sold already by someone else under a different label.

308.759 - 312.768 Frank Cantone

Be happy to send you samples right after this call and you can try that energy gummy on the website.

313.169 - 317.258 Jane Black

Yep. They even had an energy gummy with green tea in it.

Chapter 4: What are the challenges in regulating supplements?

416.018 - 421.926 Frank Cantone

And a fat-soluble soft gel. 15 grams of creatine before my second call.

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421.946 - 424.269 Sarah Gonzalez

Frank, this is so many supplements.

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424.289 - 428.575 Frank Cantone

It's not as many as you would think. It's like, on a given day, six or seven.

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429.314 - 450.124 Unknown

This week on Consider This, the drama at CBS News. Some of the most respected journalists in America say their corporate ownership is bowing to political pressure. It's intimidation. They've created a climate of fear to make the news organization unwilling to tackle the problem and report the news. Longtime 60 Minutes correspondent Steve Croft, this week on Consider This.

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450.604 - 453.128 Unknown

Listen on the NPR app or wherever you get your podcasts.

453.85 - 469.092 Jane Black

Okay, we are not here to prove or disprove whether supplements work, but we do want to say that experts and scientists tend to agree there is no evidence that supplements make healthy people healthier.

469.072 - 491.94 Sarah Gonzalez

If you're pregnant, there is evidence that folic acid decreases the risk of certain birth defects. And if you have a condition or you're deficient in something like you're anemic or deficient in iron, then yeah, sure, an iron supplement could help with that if a doctor recommends it. But if you're not deficient, then you probably don't need it.

491.92 - 510.875 Sarah Gonzalez

Frank Cantone, the supplement maker who takes not that many supplements every day, he is a big believer in supplements. Frank came to the supplement business from the real estate and clothing and thoroughbred racehorse trainer business. And his social media is still pretty horse heavy.

511.235 - 515.283 Frank Cantone

I just get vitamins ads and horse ads. That's all I got.

Chapter 5: What happens when supplement regulations are proposed?

1829.842 - 1840.595 Sarah Gonzalez

And recently, they tested a bunch of turmeric pills on the market and found that one had no turmeric, basically, and others had more than even advertised.

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1840.835 - 1853.44 Jane Black

And they have found similar variations in echinacea supplements and elderberry supplements. Consumer Labs found that more than two-thirds of elderberry supplements sold on Amazon did not contain authentic elderberry at all.

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1853.48 - 1866.615 Marion Nestle

This is true of every supplement. Well, maybe not every, but... I can't think of a single supplement... that Consumer Lab has investigated where it hasn't found wide variation.

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1866.635 - 1873.722 Jane Black

According to a 2017 study, 20% of liver toxicity cases were tied to herbal and dietary supplements.

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1874.023 - 1895.024 Sarah Gonzalez

Over most of the last 30 years, supplement-related liver failure increased eightfold, so much so that people started having to be put on wait lists for liver transplants. That might be because of user error, like people taking a bunch of these supplements in a day thinking more must be better, but maybe it's other reasons. It's really hard to pinpoint.

1895.625 - 1920.034 Jane Black

Marion says there are some supplements on the shelves that are maybe more trustworthy than others if they're marked with An NSF or USP, that indicates that they've been third-party tested, that the supplements do contain the ingredients listed, and that the amounts are accurate and not at harmful levels. Remember Frank, our supplement maker? His supplements are NSF certified.

1920.374 - 1932.525 Sarah Gonzalez

And Marion thinks it is pretty important to point out that most supplements, whether they are certified or not, likely are not causing any real harm, even if they likely aren't causing any benefit.

1932.505 - 1941.719 Marion Nestle

Some of them are harmful, and that's a problem. But most of them are not particularly harmful. So there's a little risk, but it's not a big risk.

1941.739 - 1954.419 Jane Black

I mean, to be honest, that kind of surprised me. I mean, Marian Nestle, woman of science, you would think would be rabidly anti-supplement. Honestly, she's kind of like... Do whatever you want, people.

Chapter 6: What are the risks associated with taking supplements?

2022.905 - 2026.509 Sarah Gonzalez

Did she just say supplements make people feel better?

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2026.649 - 2032.737 Jane Black

Yeah, but it's not necessarily because their ingredients actually do what they say they'll do.

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2033.097 - 2037.042 Marion Nestle

Yeah, it's this other thing. It has a fabulous placebo effect.

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2037.362 - 2044.871 Sarah Gonzalez

Yeah, you feel like your vitamin C gummy helps you not catch a cold, and then you don't catch a cold. Placebos, baby.

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2045.272 - 2074.441 Marion Nestle

Magic. There's plenty of evidence that supplements are fabulous placebos. And, in fact, I can tell you a story about a study that proved that. But it doesn't matter. Life is really hard these days. And if all it takes is a supplement pill to make people feel better, I'm not going to argue too much about it. I love placebos. Yeah, I do too. They're so powerful. I do too. I do too.

2075.003 - 2082.426 Marion Nestle

So if you're going to buy supplements, you buy from the most reputable company you can find and keep your fingers crossed.

2083.132 - 2089.182 Jane Black

Just cross your fingers, Jane. Thank you so much, Marianne. I'm feeling good about this. I'm feeling really good.

2089.242 - 2107.232 Sarah Gonzalez

You know what gets me about all this, Jane? If supplement makers were to just be like fully transparent, right? They put on the bottle, there might not be that much turmeric in here and it may cause liver damage and it may not even be anti-inflammatory. Like we're suggesting, I don't even think that would stop people from buying them.

2107.212 - 2115.124 Jane Black

Yeah, probably not. I mean, we've got a hundred years of history that says nothing is going to come between Americans and their supplements.

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