[GovernmentShrinker]

I'm not surprised they're healthy, if they're consuming a synthetic formula designed to ensure all essential nutrients are present. I strongly suspect that this formula includes ingredients derived from animals and/or synthetic ingedients that are not available in any natural non-animal food.

[quack]

It actually looks to be just vitamins and minerals. Here's the formula they are taking.

http://www.meadjohnson.com/professional/products/phenylfree2.html