little kids and nutrition education, or "grass-fed" squid

A few months ago, M had a bit if a gagging episode with a tough hunk of steak. My husband casually asked me if it was "grass-fed," and it happened to be that time. (He's dubious of the benefits and even more dubious of the cost, but I do the shopping...) :)Now more than a few times since then, if M has a tough piece of food, like the calamari at a restaurant last week, or a piece of over-cooked grilled chicken,  or even a dried mango, she will ask, "Is this grass-fed?"It reminds me that little kids don't know or understand nutrition, and they don't need to. Awhile back I wrote about how M's teacher would have the preschool class go around the room at lunch and tell what "protein" they had in their sacks. After a full year of this, then 4 year-old M said, "Mom, is lettuce protein?" I bet it would have floored the teacher to think that these kids had no clue what they were talking about all year.Or recently, we have started talking about "energy," as in, "If you only eat candy for snack, or only an apple for breakfast you might not have long-lasting energy. We eat from different foods to give us longer lasting energy, like meats or beans, fat in milk or meats..." I thought this was simple enough, but after a bowl of "sweet cereal" and a mention that she might not have "long energy,"  she replied, "Well, if sugar gives you quick energy, if I eat more of it, I will have longer and more energy..." Hmmm. Breakfast is not her meal, she eats a little fruit, maybe some milk or yogurt, a little cereal. It's hard for me, even with all I do to not worry about this "most important meal of the day." A good reminder to me to back off...It seems like children's books, PBS shows, schools and parents all think we have to raise little nutrition experts in order to help kids learn to eat. Appropriate food education for little kids is experiential, focuses on flavors, textures, color, positivity, maybe in the Kindergarten years categorizing foods into the food groups... It should not be about "nutrition,"  avoidance of food groups or particular ingredients (salt, sugar, fat, calories...). Do you know what your kids' schools are doing? Have you been talking up the nutrition benefits of milk or carrots?BTW, the notion of "grass-fed squid" makes me giggle.   :)What do you think?