Green Tea
Every 100 g of Green Tea contains 2 kcal and 0.2 g of protein. Because it has less than 5 g of available carbohydrate per 100 g, the glycemic index does not apply and its direct effect on blood sugar is minimal.
Medically reviewed by Dr. Wassim Habib · Last reviewed 12 October 2026
Glycemic index
Glycemic load
Calories
Protein
💡 Smart Nutritional Guidance
Consumption advice
Green tea contains antioxidants (catechins) and usually less caffeine than coffee.
Best preparation methods
Steep it in water just below boiling (about 80 °C) for two to three minutes to avoid bitterness, and skip the sugar.
Important Nutritional Note
Contains caffeine: keep intake moderate, especially in the evening, and ask your doctor if you are pregnant or take medication affected by caffeine.
Nutrition facts
| Nutrient | Per 100 g | Per typical portion (240 g) |
|---|---|---|
| Calories | 2 kcal | 4.8 kcal |
| Protein | 0.2 g | 0.5 g |
| Carbohydrate | 0 g | 0 g |
| Available carbohydrate | 0 g | 0 g |
| Fat | 0 g | 0 g |
| Dietary fibre | 0 g | 0 g |
The typical portion is approximate, for comparison purposes.
Comparison & smarter alternatives
It has 2 kcal per 100 g, ranking 2 of 2 in Drinks (lowest first).
Other foods in this group:
Frequently asked questions
Is Green Tea good for weight loss?
Yes. Green Tea is very low in calories (2 kcal per 100 g), so you can eat a generous amount to add volume and fullness to a meal without many calories.
How does Green Tea affect blood sugar?
Green Tea contains virtually no available carbohydrate, so the glycemic index does not apply and its direct effect on blood sugar is minimal. The meal’s effect depends on what you eat with it, such as bread, rice or sweetened sauces.
What is the nutritional value of a typical portion of Green Tea?
A typical 240 g portion of Green Tea provides about 5 kcal, 0.5 g protein, 0 g carbohydrate, 0 g fat and 0 g fibre.
Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.