Research

Tea
After water, tea – a beverage from the tea plant, Camellia Sinensis, is the second most consumed beverage worldwide. About 80% of all tea consumed is black tea, 18% is green tea and the rest comprises white and oolong tea. Around 85% of tea consumed in the US is iced tea. In 2013 - 2104 the US sales of all teas was US$1.8 billion

Green Tea
Green tea contains antioxidants, polyphenols, caffeine, amino acid L-theanine, minerals and nutrients that provide benefits for the body and mind that includes improved brain function, fat loss and a lower risk of some cancers.  Green tea is an excellent source of antioxidants that help prevent cell damage and reduce the formation of free radicals known to play a role in the aging process and all sorts of diseases.
Caffeine and L-theanine have been intensively studied and consistently it has been held they improve various aspects of brain function, improved mood and memory.

The effectiveness of green tea will depend on each individual and most importantly – the quality of the green tea. There are an ever increasing number of green teas available in supermarkets and popular health stores; the best method is to ask a number of health store owners for their recommendations and advice – before you buy.

Herbal teas
Chamomile, kava, and lavender are known for their anxiolytic effects, and passionflower has been administered to treat insomnia. Schisandra is a so-called “Adaptogenic” herb with claimed stress-protective properties.

Senna is reliably popular as a natural laxative, and therefore utilized in products meant to treat constipation or promote weight loss. Ginger and various mints are used in digestive-support formulations, and fennel to treat flatulence. The presence of Garcinia cambogia illustrates the ongoing power of “The Dr. Oz Effect”; the cardiologist and talk-show host recently came under fire at a Senate hearing for his promotion of this purported weight-loss aid (among others) due to the alleged lack of scientific support.

Echinacea tea is part of many Americans’ cold and flu prevention and/or treatment regimens; licorice and slippery elm — due to their mucilaginous properties — are present in many formulations intended to soothe symptoms such as sore throat and cough, as is wild cherry bark. Eucalyptus, a major ingredient in many cough drops, often is utilized to relieve sinus and respiratory symptoms associated with colds and flu. Red raspberry leaf is a component of many pregnancy-support tea formulations.