Drinking tea has been associated with many health benefits, including protecting cells from damage and reducing the risk of heart disease. Some studies have even found that tea may enhance weight loss and help fight belly fat. Certain types have been found to be more effective than others at achieving this.

Slimming teas are often advertised as a way to lose weight and cleanse the body. The theory is that the tea stimulates digestion, aids metabolism, and, in some 

cases, rids the body of impurities. ... All of them try to satisfy a person's desire to lose weight.

Does slimming tea really work?

Effectiveness. There is very little evidence that slimming tea is effective. In fact, class action lawsuits have been filed against companies who sold their teas as weight loss supplements. ... However, there is a substantial lack of evidence to support the claims that slimming tea affects weight loss. Weight loss teas promise to boost your metabolism, burn away stomach fat, and even "teatox" your body. What tea marketers don't tell you is that drinking these brews might also be associated with more missed periods, unplanned pregnancies, and permanent gut damage.

What are those tea mostly recommended for fat burns?

You should put out your usual cup of tea with milk and replace it with these ones  listed below to help speed up your weight loss- Puerh tea, peppermint tea,  blue tea, green tea and white tea, etc. These teas are said to not only help you burn your belly fat, but also speed up the metabolism that further helps in losing overall weight. 

Below are six of the best teas for increasing weight loss and decreasing body fat

 1. Peppermint tea:

Peppermint tea aids digestion by helping food pass through the stomach quickly. Either buy pre-packed peppermint tea or use fresh mint leaves.

 2. Green tea:

Not only does this strong herbal tea increase our metabolism to burn fat, but it also gets rid of that bloated and full feeling. If you are not a fan of the bitter taste of green tea, try making it in slightly cooler water. Steeping your teabag in 70-degree water instead of a 100-degree water, brings out all the flavour in the green tea without the bitterness. 

 3. Chamomile tea:

Chamomile is a calming herb that can be helpful for people under stress. It’s good for the digestive system and relieves bloating. Have a cup before bed and ease into an easy night’s sleep.

 4. Puerh Tea. Also known as pu'er or pu-erh tea, puerh tea is a type of Chinese black tea that has been fermented.

 5. Black Tea: Black tea contains caffeine. It also contains a little bit of a stimulating substance called theophylline. Both can speed up your heart rate and make you feel more alert. Black tea is also full of healthy substances called polyphenols. Black tea contains 2% to 4% caffeine, which affects thinking and alertness, increases urine output, and may reduce the symptoms of Parkinson disease. It also contains antioxidants and other substances that might help protect the heart and blood vessels.

 6. Oolong Tea: Oolong produced through a process including withering the plant under strong sun and oxidation before curling and twisting. Most oolong teas, especially those of fine quality, involve unique tea plant cultivars that are exclusively used for health improvement. Oolong tea falls between green and black tea, with oxidation rate anywhere between around 10 to 90%. Some oolong teas may be almost fully oxidized, making them very close to black tea, while others are green and light. ... Each type is unique with flavor, scent and leaves matching the terroir.

 Here’re the nutritional values of 1 serving of oolong tea.

Calories: 90

Fat: 0 g

Cholesterol: 0 mg

Sodium: 10 mg

Calcium: 4%

Total Carbohydrates: 25 g

Vitamin C: 100 %

 7. White Tea: White tea may refer to one of several styles of tea which generally feature young or minimally processed leaves of the Camellia sinensis plant.

 8. Herbal Tea: Herbal teas can be made with fresh or dried flowers, fruit, leaves, seeds or roots. They are made by pouring boiling water over the plant parts and letting them steep for a few minutes. The herbal tea is then strained, sweetened if desired, and served. Many companies produce herbal tea bags for such infusions.

Possible Flat Tummy Tea side effects are cramping, stomach pains, diarrhea and dehydration.

A. Black tea when taken by mouth:

 1. Drinking too much black tea, such as more than five cups per day, is POSSIBLY UNSAFE. High amounts of black tea can cause side effects due to the caffeine in black tea. These side effects can range from mild to serious and include headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion. Also, people who drink black tea or other caffeinated beverages all the time, especially in large amounts, can develop psychological dependence.

 2. Black Tea during pregnancy:

Do not drink more than 2 cups a day of black tea. This amount of tea provides about 200 mg of caffeine. Consuming more than this amount during pregnancy is POSSIBLY UNSAFE and has been linked to an increased risk of miscarriage, increased risk of sudden infant death syndrome (SIDS), and other negative effects, including symptoms of caffeine withdrawal in newborns and lower birth weight.

 3. Black tea while breastfeeding: Drinking more than 3 cups a day of black tea is POSSIBLY UNSAFE and might cause your baby to become more irritable and have more bowel movements.

Excess intake of black tea causes these health issues listed below:

i. Anemia: Drinking black tea may make anemia worse in people with iron deficiency.

ii. Anxiety disorders: The caffeine in black tea might make these conditions worse.

iii. Bleeding disorders: There is some reason to believe that the caffeine in black tea might slow blood clotting, though this hasn't been shown in people. Use caffeine cautiously if you have a bleeding disorder.

iv. Heart problems: Caffeine in black tea can cause irregular heartbeat in certain people. If you have a heart condition, use caffeine with caution.

v. Diabetes: The caffeine in black tea might affect blood sugar. Use black tea with caution if you have diabetes.