IIRC, the nutritional needs of adults aren't those of babies scaled up by a constant.
I'll let you know that I researched the matter ("Could an adult live entirely on baby food?"), and found this answer on answerbag.com:
i have heard on tv that victoria beckham eats nothing else, in order to stay well nourished but stick thin
That settles it, then. And as every doctor knows, children are just small adults ... small Victoria Beckhams specifically.
In seriousness though, you'd be fine. Here's the nutrient data for an infant formula from the USDA National Nutrient Database for Standard Reference. You can compare what you'd get from ...
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.