"In the April 1992 journal Pediatrics, research appeared warning that microwaving human milk, even at a low setting, can destroy some of its important disease-fighting capabilities. Pediatrician John A. Kerner, Jr. and his co-workers at Stanford University reported that when breast milk was microwaved it lost lysozyme activity and antibodies, and fostered the growth of more potentially pathogenic bacteria. These adverse changes, which occur at even low temperatures, suggest that the process of microwaving itself may in fact cause some injury to the milk above and beyond the heating. Milk heated at a high setting (72 degrees C to 98 degrees C) lost 96 percent of its immunoglobulin-A antibodies, agents that fend off invading microbes."
"Microwaving baby formulas converted certain trans-amino acids into their synthetic cis-isomers. Synthetic isomers, whether cis-amino acids or trans-fatty acids, are not biologically active. Further, one of the amino acids, L-proline, was converted to its d-isomer, which is known to be neurotoxic (poisonous to the nervous system) and nephrotoxic (poisonous to the kidneys). It's bad enough that many babies are not nursed, but now they are given fake milk (baby formula) made even more toxic via microwaving."