Drinking water can help you lose weight, whether you're restricting your calories or not. Consuming 2 cups of water before a meal helped a group of obese adults lose 2 pounds over a 12-week period without making any other changes to their usual intake, according to a 2015 clinical study published in Obesity.
How many tea bags should you use to make a half gallon of iced tea? One gallon is about 128 ounces, so if one tea bag is good for 10 oz  of water, then about 10 teabags is good for a gallon. Start with 10  and adjust accordingly with water.
Bring 4 cups of water to a boil. Remove from heat. Steep the tea for 5 minutes. Dunk the tea bags a few times in the water to fully hydrate, then leave submerged with the strings hanging over the side of the pot. After 5 minutes, remove the bags and discard. Add the sugar to the tea.