The Benefits and Side Effects of Red and Green Rooibos Teas
NutritionFacts.org Video Podcast
Michael Greger, M.D. FACLM
4.8 • 951 Ratings
🗓️ 30 April 2025
⏱️ 4 minutes
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| 0:00.0 | Black, green, and white teas are all made from the same evergreen plant. |
| 0:11.0 | Herbal tea, on the other hand, involves pouring water over any plant in the world other than the tea plant. |
| 0:17.0 | In my book How Not to Age, I covered hibiscus and chamomile tea in my chapters on boosting |
| 0:22.7 | AMPK and blocking inflammation. Are there any other notable herbal teas that may have anti-aging |
| 0:28.8 | properties? Roybos, also known as red tea, is a caffeine-free herbal tea grown in the mountainous |
| 0:35.4 | region of South Africa. It's been shown to increase |
| 0:38.1 | the lifespan of sea elegans by as much as 23 percent under conditions of oxidative stress, |
| 0:43.5 | presumed to be due to its antioxidant properties. In a head-to-head comparison of 15 herbal teas, |
| 0:49.4 | Roybos came in at number two, after dandelion, for in vitro antioxidant power. |
| 0:56.0 | Green rhibose, analogous to green tea, worked better in the C. Elegance study than red |
| 1:02.0 | roibos, which is the commercially more common oxidized form, akin to black tea. |
| 1:08.0 | Green rhibose tea has about twice the antioxidant capacity compared to red, though both similarly |
| 1:13.6 | increase the blood antioxidant capacity after consumption. Within six weeks, ribose intake can |
| 1:19.7 | decrease markers of oxidative damage and even drop LDL cholesterol by nearly 27 points compared |
| 1:25.9 | to control, but the dose used, six cups a day, is more than most people drink. |
| 1:30.3 | No smaller quantity has apparently yet been put to the test. |
| 1:34.3 | If you want to try it at home, though the optimal cup is said to require 10 minutes of steeping, |
| 1:39.3 | it appears extraction plateaus at five minutes, so more time doesn't seem necessary. |
| 1:45.0 | The traditional method of brewing is to simmer the roibos, |
| 1:48.0 | which does appear to improve its anti-oxin capacities compared to hot or cold steeping. |
| 1:53.0 | The practice fell into disfavor with the advent of tea bags for convenience in the 1960s. |
| 2:00.0 | The same bag transition happened to black tea, jumping from 5% in 1960 in the UK to more than |
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