Sorry to be so suspicous.
I am under a consultant for my bone density- he treats one of the Royal family and is an expert on menopause and osteoporosis.
I have also done a lot of research myself.
First, after menopause you should be consuming up to 1500 mgs calcium and half that amount of magnesium daily. You need to workout how much calcium you are getting through diet and how much you need to top up.
I take 800mgs aday of Osteocare which you can buy anywhere and contains Vit D as well but I also take additional Vit D when I remember and eat lots of oily fish ( 3x a week) and eggs daily.
In order to get the calcium into your bones and to build bone you need to exercise. You need weight bearing exercise such as fast walking, jogging, running, dancing, tennis etc etc. Not swimming or cycling. Exercise builds muscle, muscle produces a strain or pull on bone, and the bone responds by building more bone = stronger bone.
You should be doing resistance building exercises for your hips such as squats, lunges and hip extentions to work the adductor muscles. You should also be lifting weights for your wrists, arms and shoulders, and exercises for your back.
You can do this at home on the floor with free weights or at the gym.
I suggest you contact the National Osteoporosis Society for their pack of free info and they also do some booklets on diet etc which are quite cheap. there is also a lot of info online.
I have had 3 bone scan in total over 7 years and the last one showed my bones were a better density than 7 years ago. I still could do more, but i walk up and down hill 3 miles most days, take my calcium and try to eat high calcium foods. In addition I am on HRT for other symptoms which is no doubt helping my bones.
Good luck!