1. Eliminates Bad Breath:
    In 1983, Japanese researchers confirmed that green tea can help eliminate bad breath, with catechins being the effective components. Black tea also has this effect, but its active ingredient is the theaflavins found in black tea.
  2. Antioxidant Effects:
    The antioxidant effect ranking is green tea > partially fermented teas > black tea. Studies show that drinking tea increases the body’s antioxidant capacity, with green tea having six times the effect of black tea. The antioxidant ability is believed to be related to the catechin content in tea.
  3. Prevents Tooth Decay:
    Catechins strongly inhibit decay-causing bacteria. Clinical studies have shown they can significantly reduce dental plaque and periodontal disease indices, but they do not affect other oral microbes.
  4. Anti-Cancer:
    Green tea effectively inhibits cancer development, possibly due to its polyphenolic compounds. It can suppress tumors caused by various carcinogens and has inhibitory effects from cancer initiation, promotion, to metastasis stages.
  5. Lowers Blood Pressure:
    Green tea can slow the rise of blood pressure in spontaneously hypertensive rats. Epidemiological studies also indicate tea drinking reduces human systolic blood pressure: men who drink tea have 2.1 mmHg lower systolic pressure than non-drinkers, women about 3.1 mmHg lower.
  6. Slows Aging:
    To prevent chain damage caused by free radicals in the body, humans have enzymes to clear free radicals and maintain dynamic balance. Catechins and their oxidized products have strong antioxidant effects that neutralize free radicals, delaying aging, preventing oxidation, and improving allergies.
  7. Anti-Inflammatory:
    Tea reduces inflammation, with the powerful antioxidant polyphenols believed to be the main active ingredients responsible for this effect.
  8. Weight Loss:
    Taking green tea extracts can increase metabolism by up to 40%. Tea and tea polyphenols have been shown to inhibit fatty acid synthase activity in cells, reducing the increase of triglycerides, cholesterol esters, and other lipids; they also stimulate fat breakdown, aiding weight loss.
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