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When the mother eats, the food goes down through the esophagus. In the stomach, food is broken down into glucose, fat, and protein. After digestion, food is absorbed into the bloodstream and passed from mother to child through the placenta.
This is really a very effective filter that eliminates elements that can harm the unborn baby, such as bacteria . Smaller micronutrients can pass through this barrier such as: oxygen, glucose, fats, proteins, vitamins, minerals. But be aware, caffeine and alcohol also have the ability to pass through this protective barrier. So, remember not to use these harmful drinks during pregnancy. They are not beneficial for the development of the fetus.
After entering the bloodstream, these nutrients will be transferred to the fetus through the umbilical cord.