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“Green tea supplements are marketed as the panacea for a number of different psychological, metabolic and cardiac health issues,” says Nenad Naumovski, PhD, Professor in Food Science and Human ...
Other more detailed chemical research has elucidated the difficulty of isolating individual phenolics. Because significant variation in phenolic content occurs among various brands of tea, there are possible [9] inconsistencies among epidemiological studies implying beneficial health effects of phenolic antioxidants of green tea blends.
Aojiru was developed in October 1943 by Dr. Niro Endo (遠藤仁郎, Endō Nirō), an army doctor who experimented with juices extracted from the discarded leaves of various vegetables in an attempt to supplement his family's meager wartime diet.
Regular green tea is 99.9% water, provides 1 kcal per 100 mL serving, is devoid of significant nutrient content (table), and contains phytochemicals such as polyphenols and caffeine. Numerous claims have been made for the health benefits of green tea, but human clinical research has not found good evidence of benefit.
The health effects of tea have been studied throughout human history. In clinical research conducted over the early 21st century, tea has been studied extensively for its potential to lower the risk of human diseases , but there is no good scientific evidence to support any therapeutic uses other than possibly increasing alertness, an effect ...
In 2013, the EFSA decided to permit health claims that 200 mg/day of cocoa flavanols "help[s] maintain the elasticity of blood vessels." [32] [33] The FDA followed suit in 2023, stating that there is "supportive, but not conclusive" evidence that 200 mg per day of cocoa flavanols can reduce the risk of cardiovascular disease. This is greater ...
Smoothies—particularly green smoothies—are arguably a type of health shake, except stereotypical health shakes often contain some processed ingredients rather than just raw fruit and vegetables. Factory-made products often contain sweeteners and other additives (e.g., antioxidants, preservatives). [citation needed]
On the contrary, research indicates that although polyphenols are antioxidants in vitro, antioxidant effects in vivo are probably negligible or absent. [3] [4] [5] By non-antioxidant mechanisms still undefined, polyphenols may affect mechanisms of cardiovascular disease or cancer. [6]