IF A CHILD'S first word is likely to be mama, a mother's first words are likely to be "drink your milk." Well, the advice should go both ways. Calcium is among the few persistent nutrients found deficient at both ends of the age spectrum. A USDA study in public schools found that 30 percent of students got less than two-thirds of the recommended dietary allowance for calcium, and studies of the elderly have found similar deficienciesmply to remember to include an additional dose of dairy products whenead doughs and soups; yogurt instead of mayonnaise in salad dressings; a slice of cheese laid over the hamburger or hot dog when it comes offgrill.

Another way is to provide irresistible calcium sources such as cheese and crackers, ice cream or frozen yogurt, yogurt dressings a. Here is a light summer meal that lends itself to sitting at the picnic table and munching away a summer evench you dip, and as you dip you add a little calcium to your diet. All you need to go in your kitchen for are tl; all you need to go to the grocery for are the following:

EXPRESS LANE LIST: chicken breasts, lemon, yogurt, chili powder, vees (carrots, cucumbers, red or green bell peppers, cauliflower or broccoli, jicama, whatever looks freshest at the produce counter SUMMER AND SPICE CHICKEN (4 servings) Juice of 1 lemon 1 1/2 to 2 pounds boneless chicken breasts, Salt and pepper to taste 1 tablespoon oil 1 cup yogurt 1 teaspoon chili powder, or to taste Raw vegetables (carrots, cucumbers, red or green bell peppers, caulifloweccoli, jicama or your choice), cut in sticks or slices for serving

Set aside 1 tablespoon lemon juice for the dip and toss the rest with the chicken cubes. Then toss the chicken with salt, pepper, and oil.et aside.

In a small serving bowl combine yogurt with reserved tablespoon of lemon juice, chili powder, salt and pepper to taste. Set asibe refrigerated and kept a week or more).

Thread chicken on small bamboo skewers. Grill skewers of chicken, preferably on a charcoal grilabout 10 to 15 minutes, turning as it cooks, just until the meat is opaque. Arrange on a serving platter with raw vegetables and dip. Dip chicken and vegetables in yogurt you eat them.