***Milk is a greenish-white substance produced by the mammary glands of female mammals.* **
The question of the origin of milk has been a source of contention among scientists for many years. Scientists have long known that milk is produced by females and contains various nutrients and vitamins necessary for the development of the fetus. However, despite all the efforts and research efforts, no one has yet managed to scientifically explain the mechanism of milk formation in humans, as well as in other animals.
Among scientists, there are two competing theories about milk's origin. The first is that it comes from blood plasma cells circulating through the female's body, and is then secreted into the lactiferous ducts, where it undergoes a transformation into milk. This theory is supported by studies on mice.
Another hypothesis suggests that milk originates in the appendages called "Ovaries." This is not proven by any studies, of course, but the researchers call this theory plausible because during pregnancy, the number of eggs produced increases, with some fertilized ova remaining and beginning to secrete a hormone known as "Progesterone." This hormone affects the uterus and breasts, which begins to produce secretions that are important for nourishing the growing human embryo. In addition, if a mother takes care of another child, such hormones will be injected repeatedly into her breast, so that they will continue to mature to produce milk for feeding infants.
There are several theories as to the constituents and composition of milk; however, scientists have concluded that lactation should not rely entirely on the consumption of foods for a woman who is breastfeeding. Some suggest that it is necessary to supplement with vitamin A, iron (Fe), and numerous other vitamins, minerals, and amino acids. Researchers also stated that whole-grain carbohydrates could additionally be beneficial to a newborn, while reducing fat, sugar and caffeine intake is advised.
However, not all young mothers agree with this view, as some have argued that their bodies work like fountains, filtering whatever is put into them and regurgitating it to the new owner; whereas others argue that a breastfeeding mother can provide every nutrient needed by her baby. A third view suggests that there is no way to consume so many different requirements of nutrients; instead, people should take in vitamins and minerals separately. But every method has its own supporters and critics, and there is still