Both Green Tea and Black Tea offer various health benefits, but they have some differences due to variations in processing and composition.

Green Tea:

1. Antioxidants: Green tea is known for its high content of antioxidants, such as catechins, which are believed to have numerous health benefits.
2. Weight management: Some studies suggest that green tea may help with weight loss and weight management.
3. Brain health: The antioxidants in green tea have been associated with potential benefits for brain health, including improved cognitive function.
4. Heart health: Green tea may have a positive impact on heart health by reducing the risk of cardiovascular diseases.
5. Cancer prevention: Some studies have indicated that Green tea contains a catechin called epigallocatechin-3-gallate (EGCG). Catechins are natural antioxidants that help prevent cell damage and provide other benefits..

Black Tea:

1. Antioxidants: While black tea also contains antioxidants, the levels are generally lower compared to green tea.
2. Loose teas use the whole leaf while the teabags usually use the cut, ground or “dust” leaf. This makes regular teabags produce fewer Antioxidants and more Caffeine than loose teas. Another important factor which you may consider is bleach residue, a chemical, which remains on the teabags.
3. Study reveals how drinking two or more cups of black tea a day could affect your longevity.
4. Heart health: Black tea has been associated with potential benefits for heart health, including a reduced risk of heart disease and stroke.
5. Digestive health: Black tea may have positive effects on digestive health and gut bacteria.
6. Tea is rich in polyphenols, which are natural compounds that have health benefits, such as reducing inflammation and helping to fight cancer.
7. Energy and alertness: Black tea contains caffeine, which can provide a boost in energy and mental alertness.
8. Oral health: Some research suggests that black tea may contribute to improved oral health by reducing plaque formation and inhibiting bacteria growth.

In summary, both green tea and black tea have their own health benefits. Green tea may have a slight edge due to its higher levels of antioxidants, but the specific health goals and preferences of an individual may influence their choice. It's worth noting that adding excessive amounts of sweeteners or milk to either tea can diminish some of their health benefits.