Bad Symptoms of Green Tea and How to Avoid Them

Green tea contains caffeine, tannins, and polyphenols. Caffeine is known to cause stomach upset, nausea, headaches, and insomnia. Tannins have been shown to increase gastric acid secretion and may contribute to ulcers. Polyphenols have been associated with an increased risk of cancer.

Heartburn

The high levels of caffeine in green tea can lead to heartburn.

Nausea

Caffeine causes nausea and vomiting.

Insomnia

Caffeine can cause insomnia.

Headaches

Caffeine can lead to headaches.

Diarrhea

Diarrhea is caused by excess caffeine consumption.

Constipation

Constipation is caused by insufficient water intake.

Green tea contains caffeine, tannins, and polyphenols. These compounds have been shown to cause negative reactions in people who consume them. Caffeine can cause headaches, insomnia, nervousness, and anxiety. Tannins can cause stomach problems and diarrhea. Polyphenols can cause allergic reactions.