Q. Recommendations for children - Our family is very interested in obtaining and maintaining optimal health. We recently purchased Fantastic Voyage, which has been a great resource! What are your recommendations for children? We have two daughters - ages 2 and 4. Specifically, we are interested in any recommended nutritional supplements and are their any differences in dietary recommendations from adults.

A. Children have a higher need for dietary fat than adults in order to facilitate brain growth (the brain is mostly fat). I suggest modifying our diet to include more healthy fats (nuts, olive oil, avocado, low-mercury fish).

Also, even though children have little insulin resistance, I would still recommend avoidance of most simple sugar foods such as sugary snacks and fruit juices. Fresh fruit is a healthy sweet treat.