High cholesterol, high blood sugar and its harmful effects on the body, but also an excess of free radicals, also caused by drugs that must be taken, help in these cases comes from white tea. So let's take a closer look at the results of three very interesting scientific studies.
White tea against high cholesterol
The study was published in the journal Biomedicine and Pharmacotherapy by a Chinese team (Luo et al, Biomed Pharmacother, 2020). Researchers have demonstrated, through laboratory experiments, that white tea is able to regulate cholesterol levels. In particular, white tea has been shown to reduce the production of bad LDL cholesterol and triglycerides. Not only that, white tea stimulates cell receptors to store LDL cholesterol, thus removing it from the bloodstream.
White tea for blood sugar levels
The study was published in the journal The British Journal of Nutrition by a Portuguese team and was performed in the laboratory on a population of mice (Nunes et al, Br J Nutr, 2015). The mice all had altered blood sugar levels and were in a state of prediabetes. The mice were offered white tea every day. Well, regular intake of white tea improved glucose tolerance and insulin sensitivity, thus counteracting the condition of prediabetes. Not only that, white tea has also been shown to protect the brain, particularly the cerebral cortex, which plays a key role in memory, attention, thinking and language. The brain, in fact, especially in the cerebral cortex, is very susceptible to alterations in blood sugar and to the increase in free radicals produced by hyperglycemia. White tea reduced free radical damage and promoted proper brain functioning.
White tea and excess free radicals
The latest research we are talking about today appeared in the journal Food Chemistry and was published by a team of Spanish scientists (Espinosa et al, Food Chem, 2012). The study analyzed the antioxidant action of white tea in case of overproduction of free radicals caused by drugs. The research took place, like the previous ones, in the laboratory and involved a population of mice. In any case, this does not detract from the importance of the results observed. In fact, mice and humans share 95% of the genome and it is reasonable to expect the same effect. Well, 12 months of regular intake of white tea made it possible to reverse the free radical damage caused by drugs and detected in the brain, liver and heart.
White tea, other properties
White tea is made up of the buds and first leaves of the Camellia sinensis plant, the same as green tea and black tea. The name white comes from the fine silver hairs that cover the leaves of this variety of tea. White tea has a powerful antioxidant and anti-inflammatory action, counteracts cellular degeneration and improves metabolism. Not only that, white tea is the tea most capable of protecting bones and cartilage, with an action superior to that of green tea and black tea. Finally, white tea is antiviral and hepatoprotective (Hinojosa Nogueira et al, Food Funct, 2021).
White tea, preparation, warnings and contraindications
White tea is prepared by infusing the leaves at a higher temperature than green tea. Much depends on the type of tea and it is necessary to refer to the instructions on the packaging or by the manufacturer, but generally the advice is to bring the water between 80 and 85° C and leave the tea to infuse, one teaspoon per cup plus one, for 8-10 minutes. There is also the possibility of preparing a cold infusion, leaving the tea to infuse at room temperature for two hours. Studies claim that in this way the antioxidant power of tea is even increased (Hinojosa Nogueira et al, Food Funct, 2021). White tea contains caffeine, so avoid drinking it in the late afternoon and evening hours.