I take 1600 mg of calcium a day. I did hear that you need to get in your calcium b4 30 yrs old but i am 29 and I just started last year. I dont want 2 take chances. I heard that flaxseed is gr8 2. i also drink green tea & wheat grass. I swear by wheat grass as well as acai - the super antioxidant. u can go 2 costco and get 3 frozen yogurt like containers of acai berry for $11. i have a bowl of this with granola, yogurt, sliced fruit and a few nuts for breakfast. it is all over the media how great this is for you. it will clean ur blood just like wheat grass 7 gives you energy. if you can get ur hands on the actual acai drink by Monive (spelling?) that is the best. gives u energy and many say it is a cure all. it is $40 for a wine bottle size. worth every penny if u ask me :-)

If you are concerned about calcium, you may want to get your vitamin D levels checked. My levels were VERY low and that can cause brittle bones and osteoperosis. My doc said that 1/2 the patients she sees have this difficiency. I have talked to other graves patients who have the same issue. Without the vitamin D, calcium is almost pointless.
Also stay away from sodas with phospheric acid...it binds to the calcium and carries it out of the body.
the only soda that doesn't have any is 7 up.