1 serving (480 grams) contains 0 calories, 0.0 grams of protein, 0.0 grams of fat, and 0.0 grams of carbohydrates.
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Nutrition Information
Calories |
0 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 0 g | 0% | |
| Saturated Fat | 0 g | 0% | |
| Polyunsaturated Fat | 0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 0 mg | 0% | |
| Total Carbohydrates | 0 g | 0% | |
| Dietary Fiber | 0 g | 0% | |
| Sugars | 0 g | ||
| protein | 0 g | 0% | |
| Vitamin D | 0 mcg | 0% | |
| Calcium | 0 mg | 0% | |
| Iron | 0 mg | 0% | |
| Potassium | 0 mg | 0% | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Food Attributes
Source of Calories
About Unsweetened green tea
Unsweetened green tea is a traditional beverage originating from China, later becoming a staple across various Asian cuisines and cultures, particularly in Japan and Korea. Made from Camellia sinensis leaves, green tea differs from black tea due to its minimal oxidation during processing. It is naturally calorie-free when consumed without additives and contains a range of bioactive compounds, including catechins (a type of antioxidant), L-theanine, and caffeine. A typical cup contains roughly 30-50 mg of caffeine, providing mild stimulation without the jitteriness associated with coffee. Green tea also delivers trace amounts of manganese, potassium, and folate, contributing to its overall healthful profile.
Health Benefits
- Rich in antioxidants like EGCG (epigallocatechin gallate), which can help combat oxidative stress and may reduce the risk of chronic diseases.
- Contains L-theanine, an amino acid that promotes relaxation and improved focus, often working synergistically with caffeine for mental alertness.
- Supports heart health by improving blood vessel function and cholesterol levels, attributed to its catechin content.
- May aid in weight management by moderately boosting metabolism, thanks to its caffeine and catechin content.
- Offers anti-inflammatory properties, which can contribute to overall immune system support.
Dietary Considerations
Selection and Storage
Store green tea leaves or bags in a cool, dry place away from direct sunlight to preserve their flavor and nutritional content. Use freshly boiled (not boiling) water for optimal extraction of beneficial compounds.
Common Questions About Unsweetened green tea Nutrition
What is the nutritional content of unsweetened green tea?
Unsweetened green tea is extremely low in calories, containing only about 2-5 calories per cup. It has no protein, carbohydrates, or fat, making it a great zero-calorie beverage option. Additionally, it is rich in antioxidants like catechins and a small amount of essential minerals like potassium.
Is unsweetened green tea suitable for a keto or low-carb diet?
Yes, unsweetened green tea is a great option for keto and low-carb diets as it contains virtually no carbohydrates. With no added sugar or sweeteners, it can be consumed freely without interfering with ketosis or raising carbohydrate intake.
What are the health benefits of drinking unsweetened green tea?
Unsweetened green tea is loaded with antioxidants like EGCG, which may help reduce inflammation, support heart health, and aid in weight management by boosting metabolism. It has also been linked to improved brain function due to its moderate caffeine content and presence of L-theanine, which promotes relaxation and focus.
How much unsweetened green tea should I drink per day?
It's generally safe to consume 3-5 cups of unsweetened green tea per day for most people, which provides plenty of antioxidants without excessive caffeine. Those sensitive to caffeine should limit their intake to avoid side effects like jitteriness or sleep disruption.
How does unsweetened green tea compare to black tea or coffee?
Unsweetened green tea typically has less caffeine (20-45 mg per cup) compared to coffee (95 mg per cup) or black tea (40-70 mg per cup). It is also higher in catechins, a type of antioxidant, which black tea lacks due to its fermentation process. If you prefer a milder flavor and less caffeine, green tea is an excellent choice.
Data Sources & Scientific References
Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability. Below are specific scientific references and authoritative sources for this food item.
- USDA FoodData - Unsweetened green tea DataU.S. Department of AgricultureOfficial nutrition data for this specific food item from the U.S. Department of Agriculture's comprehensive food database.
Additional Authoritative Sources:
Daily value percentages based on FDA guidelines. Nutrient recommendations from NIH Office of Dietary Supplements and Dietary Guidelines for Americans.
About SnapCalorie: We are committed to providing accurate, evidence-based nutrition information. Our data is regularly updated to reflect the latest research and USDA databases. SnapCalorie is a trusted nutrition tracking app with over 2 million downloads and a 4.8/5 star rating.
