First of all, I would buy only fresh fruit, cut it up in containers for snacks (or baggies); for something "sweet" you could try grilling papaya slices or mango, with either a very light brushing of olive oil and some cinnamon; also the "low fat or no fat" buttery spray is also good for apple slices, or you can just do them sliced and placed in microwave w/cinammon or a salt substitute. I'd ask your Dr. about his craving for salt, since all the pre-made products you mention, minus the watermelon and fruit bites (I believe these are the little pre-made packets? They contain more frutose than fruit). It would be fruit only-plus "make" your own chicken nuggets, with a light dusting of panko bread crumbs, and freeze in baggies (after cooked), it doesn't seem like you need to be worried about his caloric intake, but stop buying the items he craves, substitute. Do not take him grocery shopping with you. Buy fruit juices with no added sugar and no splenda (motts makes apple juice, grape juice, etc.) V8 makes juices I would just begin by diluting w/water and continue a little more each day adding less juice, more water....Popcorn, by itself isn't a bad snack, it's the butter and salt and sometimes sugar added. Buy plain popcorn. Add a salt substitute (sparingly). Increase his exercise. Limit TV. No electric or power cars/trucks. Good old pedal items-bikes, trikes, little tykes cars, etc. Balls or all kinds, for kicking, throwing, and hence, running after. Badmiton is a great game, even during the winter months (the "birdie?" can't really hurt anything-plus sledding is a good activity). Sign him up for some type of exercise, gymnastics class, also play baseball (those plastic balls & bats), cut down on all and eventually eliminate all processed foods (for his health) or at least Limit them. French fries can be made from sweet potatoes, or regular, and sliced in chip or fry style and again (very very sparingly with the salt); nothing wrong with ranch dressing-make your own-lowfat-add light mayo or no-fat mayo and seasonings only that contain No salt. Hamburgers, make with ground turkey breast or chicken breast. Have the butcher grind it. Gatorade diluted w/water is also great. Try as this goes on to have water bottles semi-frozen for a slushy texture. I don't know what gogurt is? Is it yogurt with natural flavor or full of more than 3 ingredients? Read labels. You and your family will have to also change your eating habits. But the real key is limiting his intake of prepared foods, limiting his time Sitting, Eating veggies is great, I would also try mixing light or no-fat mayo w/low salt ketchup. Buy wheat or white bread that is low in fat and carbs, plus ONLY turkey Lite bologna. Do something physical for at least 1/2 hour - 4-8 times a day, the little guys got energy but is used to (i'm guessing) sitting in front of T.V. "Break" the T.V. (unplug)....Karate classes are also great. Passing McDonalds? Tell him you have no money. Crying will pass, but his future health and life span really depend on him building these good habits now. Buy the WII with only active games......movies or T.V. 1/2 -1 hr. a day. Period. There are other things to do, catch butterflies, lightning bugs, dig for worms, the zoo, membership to a Y where they have numerous childrens classes plus most have an indoor pool. I would also "limit" the amount he can douse his veggies in by buying small little round dishes (tiny) that you can get even at the salvation army. Having him eventually "Help" you cook is a way to get him interested in "good" food. Seems like he's hooked on salt, sugar, fried foods, processed foods, etc. Make his own "lunchables" with little cut up chicken, fruit, a little dip, and crackers like "reduced fat" wheat thins or even the bread toasted and cut up. Sorry, but since obesity ran in my family and my husbands, I was a stickler with these things, never allowed the grandparents or family to ever buy a motorized car, Nintendo (my parents actually bought it!) was limited to 15 minutes. Period.....He can also help you "vacumn", "sweep", etc. Instead of parking near a store, walk further, (bonus-you'll be in great shape too!)...Go for walks after lunch & dinner, or some activity. (after about 1/2 hour) walking is fine right away....walk your neighborhood, walk the zoo, walk, run, play. Oh, "fake Pizza", low-fat, high fiber, english muffins, with sauce (no salt, no sugar tomato sauce plus, low fat mozzarella)....add bits of veggies, garlic powder, and a sprinkle of oregano.....I toasted the english muffins, just a bit first - plus he can "make" his own....little cut up chicken, cut up turkey bologna, etc....plus those veggies. A half hour or so before you eat, give him a glass of juice/w water, or his veggies w/dip first.....Will fill up his tummy and naturally limit caloric intake. Good luck! Habits, no matter how old or young we are are difficult to change, stick with it, the crying, or tantrums, will pass. Walk away, or pick him up and take him outside, (stores, house, etc) (our pediatrician gave us this advice) say nothing, just hold him until the tantrum stops. You'd be surprised how they relate that they will not be getting their way-this worked better than any "time out" you can give a 3 year old....Sorry it was sooooo long an answer.