Usually long-term consumption of soy milk will not lead to bigger and bigger breasts either. Although soy milk contains soy isoflavones, the ingredient is a phytoestrogen, which is different from drug estrogens and has a smaller effect on human development, and does not lead to bigger and bigger breasts in patients just because of drinking soy milk. There is a possibility that during puberty, women’s physiological period, pregnancy and other special periods, due to the body’s own secretion of more estrogen during this period, coupled with the supplementation of phytoestrogens, may lead to a fuller state of the breasts, which may also be accompanied by swelling and pain, but usually the symptoms will disappear after the special period is over, so there is no need to worry. This is due to the body’s own secretion of estrogen, and has less to do with the phytoestrogens in soy milk. In addition, some experts believe that it is usually possible for a healthy adult to drink no more than 300 ml of soy milk a day, and that moderate consumption of soy milk can supplement the body’s daily needs of protein, unsaturated fatty acids and other nutrients. However, it does not mean that patients can consume soy milk for a long time, at will, and in unlimited amounts. Excessive consumption will lead to excessive intake of plant protein, which cannot be decomposed and absorbed in the body. Excessive protein accumulation may produce some toxic substances such as ammonia and nitrogen, which will increase the burden on the liver and kidneys and other organs, and may cause some damage to the body. If you are not satisfied with your own breast shape, you may not be able to improve it by drinking soy milk, you can ask your doctor at a regular clinic.