What is it?
This reading is of Dry Fat-Free Bone Mass and indicates the amount of bone (bone mineral level, calcium and other minerals) in the body.
Why is it important?
You need strong bones. Until you are about 30, your bone mass will normally increase. However, after that it will start to slowly decrease. That does not have to be as bad as it sounds. If you take good care of your bones they will likely remain dense enough to avoid any issues. If they deteriorate too quickly, or if you had low bone mass to begin with, you are at risk. Bone issues often are not noticeable until it is too late. It is therefore wise to keep track of your bone mass and check if this is staying constant. There should never be too much change in this reading.
Remember this reading of your bone mass is without fat or water content. Exercise and development of muscle mass are related to stronger healthier bones, while also decreasing the risk of fractures during falls. Alcohol interferes with the working of vitamin D. Caffeine prevents calcium from doing its job properly. The negative effects on bone mass occurs with heavy use. Ensure your coffee and alcohol intake is in moderation. Smoking also prevents the body from effectively absorbing calcium, and therefore decreases bone mass. If you are a smoker, you can add this to the long list of reasons to quit.