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The Hidden Dangers of Star Anise: What You Need to Know

Nov 1, 2023 · 102K views · 4K likes · 127 comments · 243 shares

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AI Search Summary

This video evaluates whether star anise is safe or useful for bloating and gas, emphasizing that dose, species, and contamination risk matter.

  • Main question: Is star anise safe for treating bloating and farting?
  • Short answer / core takeaway: Star anise has traditional use and plausible antispasmodic compounds, but large doses or contamination with Japanese star anise can cause serious neurological toxicity, especially in infants.
  • Evidence type: Herbal-medicine claim audit, case reports, toxicity evidence, traditional-use context, and FDA warning context.
  • Search topics: star anise safety, star anise tea, bloating, gas, infant colic, Japanese star anise, anisatin, neurotoxicity, seizures.

Common Search Questions

Can star anise help with bloating or gas?

The video says there are no randomized controlled studies for star anise and flatulence in the source data, but it has traditional-medicine use and contains anethole, which may have antispasmodic effects at low concentrations.

Why can star anise be dangerous?

At high doses, compounds in star anise can be neurotoxic. The risk is greater if normal star anise is contaminated with Japanese star anise, which contains more toxic anisatins.

What dose concern does the video highlight?

The video says the maximum recommended dose is around one star per six or seven ounces of water, not a handful in 8 to 12 ounces.

What did the FDA warn about?

The video says the FDA warned in 2003 against consuming star-anise teas because they could lead to serious neurological effects such as seizures.

Key Takeaways

  • “Natural” does not automatically mean safe; the dose makes the poison.
  • Star anise has traditional use for digestive discomfort, but evidence for flatulence specifically is limited.
  • Infants appear especially vulnerable in the case reports discussed.
  • Japanese star anise contamination is a major safety concern because it can be hard to distinguish from normal star anise.
  • DOI/PMID details from the caption have been moved into References.

Transcript

The viral recommendation

Are people around you annoyed because you’re farting too much? Or are you too uncomfortable because of bloating? This is something for you. It’s star anise.

So you take a handful of these. You put that in, let’s say, 8, 10, 12 ounces of water.

Do not do this if you value your nervous system. More on that soon.

What evidence exists for bloating?

He says that star anise will help with farting and bloating. Just boil a handful of them in 8 to 12 ounces of water. But the only source that he brings is, trust me, I’m an herbalist.

I’m a scientist who says, don’t trust me. So, what the science? Let’s dive in.

First, there are no randomized controlled studies on star anise for flatulence. No surprise, because it’s pretty hard to fund if it’s hard to patent.

But there are some studies referencing its use in traditional medicines across Japan, China, India, and more, to treat everything from rheumatism to the common cold to flatulence. So that’s at least one type of evidence.

Case reports in infants

Many cultures also use it to treat baby colic, meaning stomach pain. But here’s the problem.

This is a case report where a two-month-old showed up to an emergency room with neurological symptoms, and it turned out that his mother had been giving him star anise tea for the previous week, where she brewed only one to two stars per 16 ounces of water.

And here’s a series of 18 more infant ER visits in Spain, where star anise used to fight gas led to neurological problems.

Normal versus Japanese star anise

Why? There are two different species of star anise: Illicium verum, normal star anise, and Illicium anisatum, or Japanese star anise.

They both contain a compound called anethole, which is responsible for a lot of the distinctive licorice-like smell and flavor and which, at low concentrations, can act as an antispasmodic. That is perhaps one reason it may help fight gas.

But at high concentrations, it can become neurotoxic.

Toxic compounds and contamination

It gets worse. Normal star anise also contains chemicals called veranisatins, which are also neurotoxic at high concentrations.

Japanese star anise contains compounds called anisatins, which are much more toxic even at low doses. And it can be hard to tell the difference between the Japanese stuff and the normal stuff.

It turned out that normal star anise had been contaminated with Japanese star anise, which happens a lot, unfortunately.

Practical safety warning

This is very important: even normal star anise can be toxic at too high a dose. The maximum recommended dose is one star per six or seven ounces of water, not a whole handful in 8 to 12 ounces.

Back in 2003, the FDA warned people not to consume teas made with star anise, not just infants, because it could lead to serious neurological effects like seizures.

Share this with someone who likes their anise.

Additional Notes

Caption context

The caption frames the practical lesson as “the dose makes the poison” and asks whether star anise is dangerous or helpful.

Keywords and topics

  • Star anise tea
  • Bloating and gas
  • Infant colic
  • Japanese star anise
  • Anisatin toxicity
  • Herbal supplement safety

References