Ask the Doctor: Question: My preschool and elementary children are back in school and I want to prevent any school colds and flus. Do you have any suggestions?   Kids are back in school and yes, cold and flu season is gearing up. The best thing you can do, especially with those picky eaters, to slide in a few to boost and support their immune system; no one wants to miss school or work. Below are my 3 favorites that can be thrown into a smoothie or made into a popsicle:   Essential Fatty Acids Why? Your body cannot make essential fatty acids so you need to get them from…