What are hormones?
Hormones are a class of chemical substances secreted by specific cells that affect material metabolism or physiological functions. They play an important regulatory role in the body's metabolism, growth, development, and reproduction. The normal life activities of any organism cannot be separated from hormones. Therefore, strictly speaking, the meat consumed in daily meals inevitably contains trace amounts of animal hormones.
The formation of bird's nest does not involve sex hormones, because bird's nests are built jointly by male and female swiflets before incubation. Therefore, it can be concluded that bird's nests should not contain sex hormones. Furthermore, from a physiological perspective, even if bird's nests contain a certain hormone, this hormone is definitely not a sex hormone, but rather polypeptides and proteins, with amino acids being the main components.

According to detection data in the academic journal "Asian Journal of Chemistry", bird's nests contain fewer hormones than eggs and milk. If we calculate based on a normal person eating one egg (60 grams) and 5 grams of bird's nest per day, the progesterone intake from bird's nest is much lower than that from eggs, and the 17β-estradiol content is similar to that of eggs. The abundant sialic acid in bird's nest helps promote fetal brain development, and EGF and collagen help prevent stretch marks and restore skin firmness.
Does consuming bird's nest cause precocious puberty in children?
Precocious puberty in children There were previous news reports about parents feeding a six-year-old daughter bird's nest leading to precocious puberty. This was merely media hype, focusing on bird's nest as a supplement without mentioning the girl's daily eating habits: frequently eating roasted chicken wings. Therefore, to say that bird's nest causes precocious puberty is simply a generalization. Bird's nest is a natural food, free of any hormones, preservatives, and additives, with no side effects. However, when choosing bird's nest for children, extreme caution should be exercised to prevent purchasing fake bird's nest or bleached and dyed bird's nest.
Not for beauty with hormones
American scientists have shown that 1000 grams of dried bird's nest contain 499 grams of protein, 429 milligrams of calcium, and essential amino acids. Most importantly, bird's nest contains two active collagen proteins that can accelerate cell division, promote epidermal growth, activate aging skin cells, and generate collagen in the skin's epidermis, thereby improving problems caused by skin aging and also lightening blemishes, making the skin smoother and more elastic, which is not the rumored effect of estrogen.Authoritative Certified Efficacy According to the latest medical experimental report from The Chinese University of Hong Kong, bird's nest contains cell division hormones and epidermal growth factors, which are not harmful but very beneficial. The cell division hormones and epidermal growth factors in bird's nest can promote human cell reproduction and regeneration, and the aqueous solution of its active glycoprotein can directly stimulate the growth of immune system cells. It promotes human metabolism and enhances functional efficacy. Long-term consumption can nourish yin and kidney, moisten lungs and beautify the skin, clear heat, and strengthen the spleen. The effects are even more significant for children, the elderly, the weak, and the sick. In summary, real bird's nest does not contain hormones harmful to the human body. Moreover, there is no scientific basis for the claim that eating bird's nest causes precocious puberty in children. From a food safety perspective, what we need to care about is the type and content of hormones. If there are no negative effects on the human body after consuming a certain amount, then the food is safe. What's more, Chinese people have been consuming bird's nest for over 1,500 years, standing the test of time.