TimingGreen Tea EGCG

Best in the morning

When to take Green Tea EGCG

Earlier in the day, with food

Green tea extract delivers EGCG, an antioxidant with some evidence for metabolism and heart health. Taking it on an empty stomach at high doses has been linked to liver strain, so take it with food.

Updated 2026-10-25

Best time in your day

  1. Wake
  2. Workout
  3. Breakfast
  4. Lunch
  5. Evening
  6. Workout
  7. Dinner
  8. Walk
  9. Bed
When
Morning or early afternoon
Food
With food
Typical dose
250–500 mg extract per day; keep EGCG below 800 mg per day

How to take it

  1. 1Take it with breakfast or lunch
  2. 2Check the caffeine content on the label
  3. 3Avoid it after mid-afternoon if you are caffeine sensitive
  4. 4Don't combine with other high-dose green tea products

Watch out

Stop and see a doctor if you notice dark urine, yellowing skin or tummy pain, which can be signs of liver strain.

Keep apart from

  • Iron supplements (space by 2 hours)
  • Stimulants
  • Nadolol and some blood pressure drugs

Common questions

Is drinking green tea the same?

Brewed tea has much lower EGCG and has not shown the same liver concerns.

Does it contain caffeine?

Most extracts do, unless labelled decaffeinated.

Why not on an empty stomach?

Fasting raises EGCG blood levels sharply, which is when liver problems have been reported.

Explore further

Commonly used for

Healthy ageingHeart health

Sources

  1. NIH National Center for Complementary and Integrative Health: Green tea

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For general education only, not medical advice. Talk to a qualified doctor before starting or changing supplements, especially if you are pregnant, nursing or on medication.