About Green Tea

Green tea is a rich source of antioxidants, particularly catechins like EGCG, which are believed to provide various health benefits, including improved metabolism and cardiovascular health. It is derived from the leaves of the Camellia sinensis plant and is widely consumed in various forms, including brewed tea and concentrated extracts.

Official resources

Fact sheets from the NIH Office of Dietary Supplements related to this ingredient group.

Dietary Supplement Label Database

Ingredient group data in NutriNav is aligned with the NIH Dietary Supplement Label Database (DSLD).

DSLD group id
1173

At a glance

Approval status

GRAS

Compare All Forms

7 forms

Compare supplement forms of Green Tea by absorption quality and what your body actually gets from each:

High Moderate Low
Form Absorption Steps to absorb Notes Action
Decaffeinated Green Tea Extract
  • Label category: natural
— — — View →
Green Tea
  • Label category: natural
— — — View →
Green tea antioxidant — — — View →
Green tea antioxidant (unspecified)
  • DSLD group id: 7406
— — — View →
Green Tea Extract — — — View →
Green Tea Extract (EGCG)
  • Label category: Natural (Tea Leaf)
— — — View →
Matcha Green Tea Powder
  • Label category: natural
— — — View →

Also appears on labels as

Additional names seen on supplement labels for forms of this ingredient (beyond the main aliases above).

Green Tea Extract (Decaffeinated)

Type: Botanicals

Category for Botanicals ingredients

Watch out for

Possible interactions or cautions — talk to a healthcare provider if unsure.

  • May interact with anticoagulant medications due to its vitamin K content.
  • Caffeine content may interact with stimulants.

Potential Benefits

Benefits associated with Green Tea forms:

And 2 more benefits...

Potential Side Effects

Side effects associated with Green Tea forms:

And 1 more side effect...

What does the research say?

Numerous studies have investigated the health benefits of green tea and its extracts, highlighting their antioxidant properties and potential roles in weight management and cardiovascular health. Clinical trials have shown varying degrees of effectiveness, with some studies indicating positive outcomes in metabolic health.