For over 35 years, the Herb Research Foundation has been helping to educate the world about herbs. We offer solid science and informed opinion, for free. Please use the donate button to support our work, or better yet, JOIN us. 

Self-care is the key to better health, and self-education is key to self-care.

We are dedicated to the safe, effective use of herbs and other natural products
for health promotion and natural healing.

Rob McCaleb, HRF President

Rob’s Bio

Novel antiviral agents: a medicinal plant perspective

Several hundred plant and herb species that have potential as novel antiviral agents have been studied, with surprisingly little overlap. However, given the few classes of compounds investigated, most of the pharmacopoeia of compounds in medicinal plants with antiviral activity is still not known.

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Hawthorn for Heart Failure

A 2008 review of literature of Hawthorn has found benefits with the use of the extract in the treatment of chronic heart failure.   These  results suggest that there is a significant benefit in symptom control and physiologic outcomes from hawthorn extract as an adjunct treatment for chronic heart failure.  The review found 14 high quality trials […]

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Selections Coming Soon

The HerbSelect program is brand new (no pun intended). We’re reviewing product recommendations now and will be posting them in the near future. Thanks for your interest in this first-ever program from the Herb Research Foundation.

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Tiger Woods and Theanine to the Next level

Tiger Woods says his experience with the “calming” alkaloid l-theanine in the form of Gatorade Tiger Focus, “is taking me someplace I never imagined.” An article in The Gazette, May 24, 2009 details some of the research on theanine and the “tea paradox” of how a caffeinated beverage can be described as “calming.” A relaxed, […]

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Green Tea Research

Green tea polyphenols have potent anti-inflammatory properties. “Given the long safety record of tea consumption, the use of EGCG and related compounds may represent a novel pharmacological strategy for the modulation of inflammation.”

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Green Tea And Thermogenesis

The thermogenic effect of tea is generally attributed to its caffeine content. An article in Alternative Medicine Review reports that green tea extract stimulates brown adipose tissue thermogenesis to an extent which is much greater than can be attributed to its caffeine content alone. (more…)

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Green Tea Polyphenol EGCG Inhibits Breast Cancer

Research reported in the Journal of Nutrition demonstrates that EGCG can protect mice against carcinogen induced breast tumors. The green tea polyphenol significantly decreased mammary tumor burden and invasiveness and significantly increased latency to the first tumor.

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Green Tea Polyphenols (GTP) Against Skin Cancer

In studies conducted on human skin, green tea polyphenols prevented ultraviolet (UVB) induced chemical changes in the skin, which are considered to be mediators of UVB induced immunosuppression and skin cancer induction. GTP treated humans can prevented penetration of UV radiation, and protected against UVB-induced local as well as systemic immune suppression in laboratory animals. […]

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Cardiovascular Benefits of EGCG

Recent research published in the American Journal of Physiology Endocrinology And Metabolism describes wide-ranging cardiovascular protective functions of a green tea polyphenol, EGCG. EGCG improved endothelial function and insulin sensitivity, reduced blood pressure and protected against myocardial ischemia and reperfusion injury. The addition of improvements in insulin sensitivity to the cardiovascular benefits indicates the benefit […]

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