Hibiscus Tea: Health Benefits and How-To

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I was in Hong Kong for my Chinese book launch last month. Some days I was working from dusk until midnight, but some days I was quite free to roam in the city. On a scorching hot day, I visited Zen Organics, an organic farm, where the owner served me a cup of hibiscus tea. After drinking a sip, I told myself I had to write about this tea upon my return home.

For decades, research efforts focused on studying the health benefits of black and green tea. Herbal tea, which should technically be called tisane, was not well studied. Fortunately, more interest groups and scientists are starting to investigate this brightly colored tropical flower and, fortunately, some health benefits have been unearthed.


 Red Hibiscus Tea

Nutrition Data for Hibiscus Tea

One cup of hot hibiscus tea contains:

  • Calories: 0 kcal
  • Glycemic Index: Low
  • Gluten Free: Yes

Health Benefits of Hibiscus Tea

Lowering Blood Pressure

Many websites claim numerous health benefits, from skin clearing to regulating fluid balance, to cholesterol lowering. I prefer to look at documented scientific research. At the time of publication, the most promising health benefit of hibiscus tea is blood pressure lowering. Animal studies have consistently shown that hibiscus tea extract can lower blood pressure in a dose-dependent manner. In human studies, drinking a cup of hibiscus tea a day has been shown to significantly lower both systolic and diastolic blood pressure in adults with hypertension and type 2 diabetes. Two studies compared hibiscus tea head-to-head with black tea and found it more effective than black tea in lowering blood pressure. Interestingly, two studies also compared hibiscus sabdariffa to the blood pressure medications Captropril and Lisinopril. The results showed that hibiscus tea was as effective at lowering blood pressure as Captropril, but less effective than Lisinopril.

Its health benefit likely originates from an antioxidant from its bright red flowers. Anthocyanins, potent antioxidants, are often found in bright red foods like strawberries and watermelon. Just another reason to love your reds!

Lowering Cholesterol

Other studies also investigated hibiscus tea’s potential cholesterol-lowering effects on total cholesterol, HDL cholesterol, LDL cholesterol, and triglycerides; the results have been quite inconsistent. Overall, one review study reported that hibiscus tea did not produce any significant effect on any of the outcomes examined, when compared with placebo, black tea, or diet.

How to Make Hibiscus Tea

If you find dried hibiscus flowers at a natural food store, you can use 1 tsp of dried flowers to every cup of boiling water.


  1. Leave dried flowers in a teapot. Pour 1 cup of boiling water directly on top.
  2. Let it steep for at least 5 minutes.
  3. Strain the flowers with a tea catcher, or use the built-in mesh in your teapot.
  4. Add honey or other natural sweetener if you wish.

I also came across a video on YouTube on making the tea with fresh flowers. Enjoy!

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