There are plenty of other sources of calcium out there. You also don't have to have a DR RX vitamins and supplements. Visit your local health food store, they have a childrens section. I give my son a whole vit and a probiotic, neither one have added suger, color etc, NO CRAP. He loves them.
Here is just a list I got from a quick google search.
http://www.bchealthguide.org/healthfiles/hfile68e.stm#hf008
Beans and Bean Products Portion mg
Soy cheese substitutes 1 oz 0-200
Tofu, firm, made with calcium sulphate 3 ½ oz 125
White beans ½ cup 100
Navy beans ½ cup 60
Black turtle beans ½ cup 50
Pinto beans, chickpeas ½ cup 40
Nuts and Seeds Portion mg
Almonds, dry roast ¼ cup 95
Whole sesame seeds (black or (white) 1Tbsp 90
Tahini(sesame seed butter) 1Tbsp 63
Brazil, hazelnuts ¼ cup 55
Almond butter 1Tbsp 43
Meats, Fish, and Poultry Portion mg
Sardines, canned 3 ½ oz/ 8 med 370
Salmon, canned with bones 3 oz 180
Oysters, canned ½ cup 60
Shrimp, canned ½ cup 40
Vegetables
(all measures for cooked vegetables) Portion mg
Turnip greens ½ cup 95
Okra, frozen ½ cup 75
Chinese cabbage/bok choy ½ cup 75
Kale ½ cup 50
Mustard greens ½ cup 50
Chinese broccoli (gai lan) ½ cup 44
Rutabaga ½ cup 40
Broccoli ½ cup 35
Fruit Portion mg
Orange 1 med 55
Dried figs 2 med 54
Non Dairy Drinks Portion mg
Calcium enriched orange juice 1 cup 300
Fortified rice beverage 1 cup 300
Fortified soy beverage 1 cup 300
Regular soy beverage 1 cup 20
Grains Portion mg
Amaranth, raw ½ cup 150
Whole wheat flour 1 cup 40
Other Portion mg
Brown sugar 1 cup 180
Blackstrap molasses 1Tbsp 170
Regular molasses 1Tbsp 40
Asian Foods Portion mg
Sea cucumber, fresh 3 oz 285
Soy bean curd slab, spiced, semisoft 3 oz 269
Shrimp, small, dried 1 oz 167
Dried fish, smelt 2Tbsp 140
Seaweed, dry (hijiki)* 10 gram 140
Seaweed, dry (agar) 10 gram 76
Lily flower, dried ¼ cup 70
Soy bean milk film, stick shape 3 oz 69
Fat-choy, dried ¼ cup 50
Oyster, dried 3 45
Soy bean milk film, dried 3 oz 43
Boiled bone soup ½ cup negligible
*Laver, nori, and wakame seaweeds are low in calcium
Native Foods Portion mg
Oolichan, salted, cooked 3 oz 210
Fish head soup 1 cup 150
Indian ice cream (whipped soapberries)
½ cup 130