It contains a variety of vitamins essential for the human body, including A, D, E, K, B1, B2, B3, B5, B6, H, C, P, and inositol. Except for A, D, E, and K, which are less soluble in water, the others are water-soluble vitamins that can be fully utilized when brewing tea; it contains multiple minerals, such as potassium, which is indispensable for human cells, fluoride that protects teeth, and other trace elements like phosphorus, calcium, magnesium, iron, zinc, sodium, boron, and sulfur; it also provides a rich array of essential amino acids for humans, along with small amounts of protein and fat, which contribute to nutritional supplementation. With very little soluble sugar, it is a low-calorie beverage.