Why Vitamin D along with Calcium?
When it comes to bone health, many of us automatically think of calcium and milk/dairy. However, calcium alone can't do its job without adequate vitamin D. Think of vitamin D as the gatekeeper to bone tissue, it aids in the absorption of calcium.
Vitamin D may also decrease our risk for certain types of cancer. Most notably, colon, prostate and breast cancer. And, a deficiency in vitamin D can lead to osteopenia, osteoporosis, chronic pain, muscle weakness, fractures and autoimmune diseases. A recent U.S. study in the June 9 issue of the Archives of Internal Medicine, found that Vitamin D deficiency may increase the risk of heart attacks in men.
We need sunlight - but in moderation
Vitamin D is manufactured in the skin upon exposure to sunlight. Past recommendations have indicated that just a little exposure - say 15 minutes a day, will give us all the sunlight we need to make vitamin D. However, recent studies have shown that many of us fall short. Even people living in climates sunny throughout the year like southern
Calcium - our bones needs it!
Now, on to calcium. Aside from its role in bone health, calcium also aids in: muscle contraction, blood vessel contraction and expansion, hormone secretion, heartbeat regulation, conducting nerve impulses and blot clotting. And, all of these functions are considered more vital than keeping our bones strong. So, when we fall short on our calcium intake our body leaches it from our bones. If this process occurs frequently, over time we end up with weak, porous bones, osteopenia and osteoporosis.
Make sure you get enough!
It's clear we need to take in adequate levels of calcium and vitamin D daily. Calcium is more easily obtained from foods, especially dairy foods. Greens like spinach are often noted for their calcium but, this calcium is bound to the oxalic acid present in these greens and therefore, not readily absorbed. The same thing goes for calcium that is fortified into grain products - it is bound to phytic acid and not easily absorbed in the body. Vitamin D is a bit harder to find in foods. Salmon, mackerel, canned tuna, canned sardines, and milk are your best options. If you don't drink 4 glasses of milk a day or a combination of other dairy and the fish mentioned above, try a calcium + Vitamin D supplement.
A liquid calcium and Vitamin D supplement is very easy way to get what you need each day. You can take it all at once or split up the dosage. Calcium is best absorbed if you take 500 mg at a time.


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Posted by: Sarah on Tuesday, July 15, 2008
I didn't realize that I am actually interfering with the creation of Vitamin D in my body when I use sunblock. I always use sunblock! I'm definately going to look for a Vitamin D supplement now.
Posted by: betty treadwell on Tuesday, November 11, 2008
I have recently had breast cancer and had a bone density test done. I have some bone loss and it was recommended that I take Boniva. I do not like the side affects and am looking for an alternative. I do take Calcium with D every morning with other vitamins. Should I take more Calcium with D during the day. I do not drink milk or eat ice cream.
Posted by: Marie Spano on Wednesday, November 12, 2008
Thank you for your great question Betty! Bone loss does occur with age though every bone scan should show a graph indicating where you are in comparison to the average bone density for your age. If you didn't get a DEXA scan where you are laying down on a machine, I would encourage you to get that done (versus the kind that measures the bone density in your heel). You should have your lumbar spine and hip measured for BMD (bone mineral density) and BMC (bone mineral content). It is wise to take calcium + vitamin D in divided doses twice a day (taking a max of about 500-600 mg calcium at a time because when you take more, your body doesn't absorb as much). Calcium citrate can be taken anytime of the day (with or without food) whereas calcium carbonate needs to be taken with food. I would take calcium/D supplements separately from a multivitamin (calcium does compete with other minerals for absorption). Other dietary substances that affect bone mineralization include zinc, boron, copper, fluoride, manganese, silicon, vitamins D and K. (Food and Nutrition Board) Therefore, it is wise to eat a varied diet. And, of course, participate in bone building exercise - lifting weights, playing tennis, walking (on trails or hills preferred). Muscle pulls on bone making it stronger and more dense.