First of all Dr. Lita Lee never wrote an article for the lancet about the danger of microwaved baby formula. You can check the lancet archives:
http://www.sciencedirect.com/science/journal/01406736
Instead, there is an article by 3 researchers stating "that milk heated in the microwave oven produce cis-stereosomers of hydroxyproline and cis -amino acid. It also produce d-proline. The concentration was estimated to be 1-2 mg/L. The researchers worried about the effect of the cis form because it could be incorporated in proteins and change their configuration and immunoligical properties. d-proline can potentially be a neurotoxin if injected into the brain of 2-5 day old chick. Therefore the researcher stated that effect should be investigated
this was critiqued in Lancet of Feb 4 335 (8697) 470, then Mar 31 335 (8692) 792 which had a mistake and was corrected on apr 7 335 (8693) 868 and was finally critiqued on Jul 7 336 (8706) 49.
The author of the research also stated that its was not to test the toxicity of microwave food but to have a model of the event of microwaving."
source
Dr. Lita Lee used the Lancet information and added her own personal commentary, which was then either fraudulently or erroneously credited to publication in the Lancet. You may want to check out her website, which has all kinds of stuff she would like to sell to you:
Dr. Lee
Secondly, these changes are likely related to heating and not the microwave process, per say, and therefore would occur even if the formula was heated on a stove.
Finally the only proven dangers that microwaving formula would entail would be an uneven heating of the formula, creating the possiblility for a burn if the formula is not mixed well after heating.
One more thing. I found this one solitary article on a whole bunch of holistic websites (
example, as well as on some Christian sites (
example ) where microwaving is decryed as "unnatural".
Same goes for the other sources. Any research quoted is decades out of date, questionably sourced, vagely referenced and unsubstantiated.
IMO this all boils down to propeganda and just another marketing tool for "natural products" and a natural, God-fearing lifestyle.
Editied to add: I am not at all against either Holistic/natural medicine or lifestyles, nor am I anti-Christian. What I am against is false representation of the facts, or sloppy research, which is used to convince people to use their products or believe what they believe.
Especially when this misinformation is medical and/or alarmist in nature.