see
http://answers.yahoo.com/question/in...9182140AA92ZT4 for one.
"children under two years of age need fat in there diets for healthy brain development, if you feed them low fat products it can cause slow or incomplete brain development"
"Bridget Swinney, author of “Healthy Food for Healthy Kids” (Meadowbrook Press) and “Eating Expectantly” (Meadowbrook Press).
Swinney says, “There are several nutritional building blocks that are vital for brain growth, but the most important of these is a special fat called omega-3. " (omega-3 is a fat, found in fish and whole milk. since most babies don't eat fish, milk is the next best source. Bear in mind, this is referring to babies, not older toddlers-who are sometimes referred to as babies.)
But, as princess perky said, look at their whole diet. When I worked at wic, we found many moms used marginan, and cheese substitute, ice milk, fat free yogurt. Those don't contain the nesessary omega-3. So, make sure you are getting the real thing.
After after 1 or 2, you can slack off the fat some.
FTYI, the average physician takes about 3-6 credit hours of nutrition classes in college. Those specializing in peds may take 3 classes. A 4 year college trained nutritionist takes about 60 college hours in nutrition, in addition to her other classes. That is why so many hospitals/ doctors now days have a nutritionist on staff. My middle daughter goes in and out of Children's Mercy in Kansas City very often due to a colon problem. Every time I ask one of her doctors a diet/nutrition question about her, they call in the hospital nutritionist to talk to me. One of the dr's even told me--"ask her, not me--I took 1 class in nutrition 35 years ago."