Food & Drink

Sassafras Tea? Wait, It Is Not Safe!

There are three species of sassafras trees, two of which are native to Eastern Asia and one to North America. However, fossil records have demonstrated that these trees once grew extensively around North America, Greenland and Europe. All the different parts of the tree are strongly aromatic, and the bark has long been utilized to make various medicines. For example, some people apply sassafras to their skins, while others use sassafras to make tea. However, nowadays, people begin to know the serious concerns regarding the safety of sassafras. So drink sassafras tea with caution.

Is Sassafras Tea Safe to Drink?

For many years, the oil extracted from the sassafras root and bark has been used to scent soaps and perfumes. Sassafras has also been employed as topical treatment for insect bites and skins. In addition, dried and powdered sassafras leaves and skins have been added to soups as a thickening agent, and dried sassafras root has been steeped to make sassafras tea.

However, one chemical that is abundant in sassafras, safrole, is known to be poisonous. A cup of tea using 2.5 grams sassafras has around 200 mg safrole. This translates to approximately 3 mg safrole per 1 kg body weight – about four and a half times the dose considered to be toxic. Researchers have shown that mice and rats injected with safrole have difficulty walking and regulating their body temperature, and display signs of confusion and nervousness. When rats were exposed to safrole for a long time, there was increased risk of developing liver cancer. For these reasons, the US Food and Drug Administration (FDA) prohibited the use of sassafras in food additives in 1960, and the sale of sassafras tea in 1976.

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