How many calories are in green tea?

Plain green tea has only 2 calories per cup (240ml). Per 100g, it's just 1 calorie. This makes it essentially a zero-calorie beverage. Adding sugar (16 cal/tsp) or honey (21 cal/tsp) changes this significantly.

Is green tea good for weight loss?

Green tea is excellent for weight loss, virtually zero calories and may boost metabolism slightly. The caffeine and catechins (especially EGCG) can increase fat burning by 3-4%. Drink 3-5 cups daily for potential benefits.

What nutrients are in green tea?

Green tea has 0.2g protein, 0g carbs, 0g fat per 100g. Its value comes from antioxidants (catechins, especially EGCG), L-theanine (for calm focus), and caffeine (25-50mg per cup). Small amounts of potassium (8mg).

Is green tea keto-friendly?

Yes, green tea is perfect for keto with 0g net carbs. It's one of the best keto beverages alongside water and black coffee. Avoid sweetened green tea drinks, bottled versions often have 20-30g sugar.

How much caffeine is in green tea?

Green tea has 25-50mg caffeine per cup, less than coffee (95mg) but more than decaf (2mg). Matcha has more (70mg per cup) since you consume the whole leaf. Caffeine-free alternatives include herbal teas.

Green tea vs coffee: which is healthier?

Both have benefits. Green tea has more antioxidants (catechins) and L-theanine for calm energy. Coffee has more caffeine and different antioxidants. Green tea is gentler on the stomach. Both are essentially zero-calorie when unsweetened.

What are the health benefits of green tea?

Research suggests green tea may: boost metabolism, improve brain function, reduce heart disease risk, lower blood sugar, and provide antioxidants. Benefits require regular consumption (3+ cups daily). Not a miracle cure, but a healthy habit.

When is the best time to drink green tea?

Best times: mid-morning or early afternoon for energy without sleep disruption. Avoid on empty stomach (can cause nausea). Don't drink with meals, tannins can reduce iron absorption. Stop 6 hours before bed due to caffeine.

Does green tea break a fast?

No, plain green tea doesn't break a fast, it has only 2 calories and no carbs to trigger insulin. It may actually support fasting by reducing hunger and boosting fat burning. Avoid sweeteners that would break the fast.

How should I prepare green tea?

Use water at 160-180°F (not boiling, that makes it bitter). Steep 2-3 minutes for best flavor. One teaspoon of leaves per cup. Re-steep quality leaves 2-3 times. Store tea away from light and moisture.

All Foods

Calories in Green Tea

USDA Verified · FDC 2710490 · Jan 2026

1 calories

per 100g (100g)

0.2g

Protein

Carbs

Fat

Fiber

Per 100g as prepared

Log Green Tea in one photo

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