BVO: The Additive the FDA Took 54 Years to Ban

Most “banned in Europe, legal in America” stories are about a transatlantic disagreement: the EU sees a risk the US doesn’t, and the two regulators talk past each other for decades. Brominated vegetable oil isn’t that. It’s stranger and, honestly, more damning.

With BVO, the FDA agreed there was a problem. It said so in 1970. It pulled the additive off the “generally recognized as safe” list, declared it could only stay in food on an “interim” basis pending more safety studies, and then left it there. For 54 years. The interim review that was supposed to resolve the question got resolved in 2024, when the FDA finally revoked the authorization entirely. By then, the major brands had mostly removed it on their own years earlier.

This is the cleanest portrait I know of how American additive regulation actually fails. Not through bad science. Through inertia.

What BVO is and what it did

Brominated vegetable oil is exactly what it sounds like: vegetable oil that’s had bromine atoms chemically bonded onto it. The bromine makes the oil denser, and that density is the whole point. In a citrus-flavored soda, the flavor oils want to float to the top and separate. A small amount of BVO weighs the flavoring down so it stays evenly suspended through the bottle. It’s an emulsifier, technically a clouding/stabilizing agent. (Wikipedia.)

It did this job in citrus sodas and sports drinks for decades: original Gatorade, Mountain Dew, some Powerade and Fanta and store-brand citrus drinks. (Today.) Like most of the additives on this site, it added nothing you’d want: no flavor, no nutrition. It kept the drink looking uniform.

The concern is the bromine. Brominated compounds can accumulate in body fat and tissue over time, and the question regulators kept circling was what chronic bromine buildup does, particularly to the thyroid.

The timeline, because the timeline is the story

Walk through the dates slowly. They tell you more than any single study.

1958: BVO is designated GRAS (generally recognized as safe) under the new food additive framework. (Wikipedia.)

1970: The FDA reverses that. After toxicity concerns emerged, the agency concluded BVO was not GRAS at the levels then in use, and reclassified it as an “interim” food additive, permitted to stay in food, at a limited level, while additional safety studies were conducted. (Wikipedia; FDA.)

Stop there for a second. As of 1970, the US government’s official position was: we are no longer confident this is safe, we need more data, and in the meantime you may keep selling it. That “meantime” lasted 54 years.

Meanwhile, Europe: the EU never authorized BVO as a food additive at all. Under Regulation (EC) No 1333/2008, it simply isn’t on the permitted list, so it’s been effectively prohibited in EU soft drinks throughout this period.

2013: PepsiCo removes BVO from Gatorade, not because of a regulation, but because of consumer pressure. The company’s own statement was telling: “While our products are safe, we are making this change because we know that some consumers have a negative perception of BVO.” (Manufacturing.net.) Coca-Cola and PepsiCo broadly phased it out of most major drinks over the following years.

2024: The FDA finally completes the loop. On 3 July 2024 it published a final rule revoking the authorization for BVO, effective 2 August 2024, with a one-year compliance window for reformulation. (Federal Register; FDA constituent update.)

So both sides of the Atlantic have now banned it: the EU all along by never permitting it, the US at last in 2024. For the current legal status in plain terms, see the BVO ingredient page.

The science the FDA finally cited

What’s notable is that the 2024 revocation didn’t rest on some dramatic new discovery. It rested on studies the FDA ran itself, in collaboration with the NIH, the kind of work the 1970 “interim” status had implicitly promised and then failed to prioritize for half a century.

Those studies, in rodents, found that oral BVO exposure raised tissue levels of bromine and that, at higher doses, the thyroid was a target organ, with statistically significant increases in serum bromide and in thyroid follicular cell hyperplasia. The FDA concluded there was “no longer a reasonable certainty of no harm” from BVO’s use in food. (FDA; Federal Register.)

I want to be calibrated here, because this is a both-sides-agree case and it’s tempting to over-dramatize it. The findings are in rodents, at doses above typical consumption, and there’s no body of human evidence showing dietary BVO at soda-level intake caused thyroid disease in people. The honest claim isn’t “BVO was giving Americans thyroid cancer.” It’s “the safety case never closed, the thyroid signal was real enough that the FDA’s own studies couldn’t clear it, and a regulator doing its job removes an additive in that situation, eventually.” Here, eventually meant 54 years.

What this case is really about

The reason I think BVO matters more than its modest real-world risk is that it’s the purest available example of why American food regulation lags Europe’s. And the answer isn’t “the FDA’s scientists are worse.”

In Europe, an additive whose safety can’t be affirmatively established doesn’t stay on the market while everyone waits for data. The burden sits with proving safety, and “we’re not sure” defaults to “not authorized.” In the US, an additive, even one stripped of its GRAS status, can sit in legal limbo for decades, permitted on an “interim” basis, because the system’s default is permitted unless removed, and removing something takes affirmative agency action that nobody is forced to schedule. That structural difference is the entire subject of REACH vs TSCA, and BVO is its case study: same continent’s worth of scientific capability, opposite default settings, a 54-year gap in outcome.

The other lesson is about who actually moved first. It wasn’t the regulator. Gatorade dropped BVO in 2013, eleven years before the FDA acted, because consumers pushed. That’s a recurring pattern across this whole site: companies reformulate ahead of rules in response to perception. It’s a real mechanism of change, but it’s a poor substitute for a system that resolves its own open questions.

So should you worry? And is your drink affected?

Practically, this one is close to fully resolved.

• Most drinks already dropped it. Gatorade since 2013. PepsiCo announced in 2014 that it would remove BVO from the rest of its lineup, Mountain Dew included, and rolled the reformulation out over the following two years. By the time the FDA acted in 2024, the agency itself noted that few beverages in the US still contained BVO. (Today on the 2024 rule and affected drinks.) The persistent “Mountain Dew is banned in Europe over BVO” claim is about a formulation PepsiCo retired roughly a decade ago.
• After the 2024 rule, any remaining holdouts had to reformulate within the compliance window. So a BVO-containing drink on a US shelf is now an aging-inventory exception, not the norm.
• The risk was always chronic and dose-dependent, not acute. Nobody needs to worry about a citrus soda they drank in 2019.

If you want to check, BVO would appear in the ingredient list by name. But for nearly everyone, the honest status is: this fight is over, both regulators landed in the same place, and the only remarkable thing is how long the US took to get there.

The takeaway

The FDA pulled brominated vegetable oil from the GRAS list in 1970, calling it an “interim” additive pending more study, and then revoked it entirely in 2024: a 54-year gap during which the EU never permitted it at all and the major brands removed it on their own. The 2024 decision rested on the FDA’s own rodent studies showing bromine accumulation and thyroid effects, at doses above normal intake, with no proven human harm at soda levels. This isn’t a story about bad science or a poison in your drink. It’s the clearest example there is of how the American “permitted until actively removed” default produces decades of delay that Europe’s “prove it’s safe first” default doesn’t.

For the broader version of that contrast, see REACH vs TSCA and Why do I feel better in Europe?