Learn about the risks:
Nutritional Deficiencies
Deficiencies may result from differences in nutrient content between soy-based infant formulas and breast milk or cow’s milk. Soy does not naturally contain high levels of calcium, vitamin B12, and vitamin D, so manufacturers must add them. However, it’s important to check the ingredient list to be sure. A deficiency in certain essential nutrients can affect a baby’s growth and development.
Allergies
Soy allergies are common among infants and young children. Symptoms may include skin rashes, facial flushing, vomiting, diarrhea, and breathing difficulties. Consumption of soy-based plant-based infant beverages by children with a cow’s milk protein allergy can cause a cross-reaction in 10–14% of this population.
In cases of cow’s milk protein allergy, extensively hydrolyzed formulas and amino acid-based formulas are appropriate options. Infant formulas other than those based on cow’s milk should be prescribed only in cases of specific medical conditions and strictly under medical and dietary supervision.
Hormonal Imbalance
Regarding hormonal effects, soy protein contains phytoestrogens, including isoflavones. By binding to estrogen, these compounds can disrupt a child’s hormonal system. Depending on the amounts ingested, they can have estrogenic or anti-estrogenic effects, which may impact growth, sexual development, and thyroid function.
Conclusion
It is important to note that infant formulas other than those made from cow’s milk should be used only in cases of specific medical conditions, such as allergies. However, their use must always be accompanied by appropriate medical and dietary monitoring.