Oolong tea is partially oxidized. Contains caffeine, fluorine, magnesium, potassium, sodium, manganese, niacin, amino acids such as theanine and antioxidant polyphenols. Polyphenols help to maintain
normal blood sugar levels and decrease the risk of developing type 2 diabetes; although more studies are needed. Oolong tea can help lower the risk of heart disease, stroke and hypertension in some people. It can also help to increase bone mineral density, also strengthening tooth enamel and reducing the formation of dental plaque. The combination of caffeine and polyphenols increases the burning of calories and fats, favoring weight loss. The caffeine, antioxidant and theanine in tea can benefit brain function and mood. ... View more »
Black tea improves digestion, helps you lose weight, controls diabetes and increases the chances of women getting pregnant. Black tea has the least antioxidants compared to other types, however, as it has the highest amount of caffeine, it has the greatest effect on weight loss, according to nutritionists. It also has anti-inflammatory properties and, if consumed moderately, helps to regulate blood pressure, preventing cardiovascular problems.
Black tea is also composed of tannins that have this astringent effect, that is, it can dry and dehydrate the intestine, causing constipation and hindering the absorption of nutrients. In addition, this dysfunction impairs the absorption of iron by the body and can cause anemia. ... View more »